01441nas a2200193   4500008004100000022001400041245010300055210006900158260012500227300002300352490000700375520064400382100002901026700001701055700001701072700002001089700001301109856012501122       2006                        eng d  a0003-695100aPhysical manipulation of biological and chemical syntheses for nanoparticle shape and size control0 aPhysical manipulation of biological and chemical syntheses for n  aCIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScDEC  aArticle No. 2631050 v893 a<p>A nanosynthesis scheme is demonstrated which renders excellent control of nanoparticle shape, size, and dispersity in a solution based synthesis process. The scheme, termed as percolative microcavity synthesis, involves the use of a granular medium with percolative microcavities which facilitate nearly similar grain size/shape dependent reaction zones limiting intrinsic growth inhomogeneities, enabling particle size/shape control. The viability of the process is demonstrated for the synthesis of gold nanoparticles by a plant extract based biological method as well as a chemical method. (c) 2006 American Institute of Physics.</p>1 aOgale, Satishchandra, B.1 aAhmad, Absar1 aPasricha, R.1 aDhas, Vivek, V.1 aSyed, A.  uhttps://library.ncl.res.in/content/physical-manipulation-biological-and-chemical-syntheses-nanoparticle-shape-and-size-101189nas a2200229   4500008004100000022001400041245010500055210006900160260007700229300001000306490000700316520034700323100001700670700002500687700002000712700001700732700001900749700001900768700001700787700002900804856012600833       2007                        eng d  a0935-964800aFungus-based synthesis of chemically difficult-to-synthesize multifunctional nanoparticles of CuAlO20 aFungusbased synthesis of chemically difficulttosynthesize multif  aPO BOX 10 11 61, D-69451 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcNOV  a3295+0 v193 a<p>Fungal nanosynthesis of ternary CuAlO2 phase is achieved at 50 degrees C. This phase is chemically difficult to synthesize at low temperatures because of the incompatible oxidation chemistry of Cu and Al. The synthesized protein-capped water-dispersible nanoparticles show blue luminescence and radio-frequency absorption (see figure).</p>1 aAhmad, Absar1 aJagadale, Tushar, C.1 aDhas, Vivek, V.1 aKhan, Shadab1 aPatil, Shankar1 aPasricha, Renu1 aRavi, Venkat1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/fungus-based-synthesis-chemically-difficult-synthesize-multifunctional-nanoparticles-002573nas a2200229   4500008004100000022001400041245013200055210006900187260007300256300001400329490000800343520166100351653001502012653002402027653002802051653003902079100002302118700002402141700002902165700001902194856013002213       2007                        eng d  a0039-602800aImpact of orientational distribution of adsorbing objects on dynamics of Random Sequential Ballistic Adsorption (RSBA) dynamics0 aImpact of orientational distribution of adsorbing objects on dyn  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcNOV  a5010-50150 v6013 a<p>Recently, by proposing a new variant of Random Sequential Adsorption (RSA) namely Random Sequential Ballistic Adsorption (RSBA) model [Pradip B. Shelke, A.G. Banpurkar, S.B. Ogale, A.V. Limaye, Surf. Sci. 601 (2007) 274], we addressed the issue of adsorption dynamics of extended objects where the objects, upon adsorption, protrude outside the substrate. This study brought out the role of the arriving trajectory in the adsorption dynamics. In the present work the possible role of the orientational distribution of the arriving objects in the RSBA dynamics is investigated. The dynamics of RSBA of needles (line segments) is studied analytically and by computer simulation for different types of theta distributions of arriving needles, theta being the angle made by the arriving needle with normal to the substrate. Three types of theta distributions, namely a uniform distribution over the range (0, pi/2), a Gaussian distribution and a distribution uniform over the solid angle, are considered. Analytical treatment establishes that in all the three cases, the number n(t) of adsorbed objects at a late time t follows a power law n(t) similar to t(alpha), and the exponent a depends on the specifics of the theta distribution. In general, for distribution f(theta) proportional to theta(beta), for theta -&gt; 0, alpha is found to be 2/(beta + 3). The simulation results are in excellent agreement with the analytical findings and together they reveal that the orientational distribution of arriving objects has significant consequences for the Random Sequential Ballistic Adsorption (RSBA) process. (C) 2007 Elsevier B.V. All rights reserved.</p>10aAdsorption10aadsorption kinetics10aMonte Carlo simulations10arandom sequential adsorption (RSA)1 aShelke, Pradip, B.1 aBanpurkar, Arun, G.1 aOgale, Satishchandra, B.1 aLimaye, A., V.  uhttps://library.ncl.res.in/content/impact-orientational-distribution-adsorbing-objects-dynamics-random-sequential-ballistic-001522nas a2200205   4500008004100000022001400041245009400055210006900149260008100218300001200299490000700311520075400318100001801072700002401090700001601114700002901130700002201159700001901181856011601200       2007                        eng d  a0022-372700aInterface and defect structures in YBa(2)Cu(3)O(7-delta) and Nb : SrTiO(3) heterojunction0 aInterface and defect structures in YBa2Cu3O7delta and Nb SrTiO3   aTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLANDbIOP PUBLISHING LTDcJAN  a187-1910 v403 a<p>YBa(2)Cu(3)O(7-delta) thin films grown on a Nb-doped SrTiO(3) substrate by a pulsed laser deposition method have been fully characterized by scanning transmission electron microscopy Z- contrast imaging and electron energy loss spectroscopy techniques. The Nb distribution was found to be uniform and unchanged across the interface, ensuring a high quality p - n junction heterointerface. We first observed the coexistence of 124 and 125 YBCO defect structure phases, appearing as planar defects in a YBCO thin film. Dispersive Y(2)O(3) nanoparticles have also been observed in the thin film. The interaction of these defect structures and Y(2)O(3) nanoparticles is thought to be beneficial for pinning flux through the entire film thickness.</p>1 aFu, Lian-feng1 aBrowning, Nigel, D.1 aRamadan, W.1 aOgale, Satishchandra, B.1 aKundaliya, D., C.1 aVenkatesan, T.  uhttps://library.ncl.res.in/content/interface-and-defect-structures-yba2cu3o7-delta-and-nb-srtio3-heterojunction02057nas a2200301   4500008004100000022001400041245007100055210006900126260009200195300001400287490000600301520105500307653003001362653001401392653001401406653001801420100002201438700001601460700002101476700002301497700001801520700001801538700002301556700001901579700002301598700002901621856010501650       2007                        eng d  a1533-488000aLow temperature synthesis of magnetite and maghemite nanoparticles0 aLow temperature synthesis of magnetite and maghemite nanoparticl  a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScDEC  a4294-43020 v73 a<p>We report on the synthesis of iron oxide nanoparticles below 100 degrees C by a simple chemical protocol. The uniqueness of the method lies in the use of Ferrous ammoniurn sulphate (in conjugation with FeCl3) which helps maintain the stability of Fe-2+ state in the reaction sequence thereby controlling the phase formation. Hexamine was added as the stabilizer. The nanoparticles synthesized at three different temperatures viz, 5 degrees, 27 degrees, and 95 degrees C are characterized by several techniques. Generally, when a mixture of Fe3+ and Fe2+ is added to sodium hydroxide, alpha-Fe2O3 (the anti-ferromagnetic phase) is formed after the dehydration process of the hydroxide. In our case however, the phases formed at all the three temperatures were found to be ferro (ferri) magnetic, implying modification of the formation chemistry due to the specifics of our method. The nanoparticles synthesized at the lowest temperature exhibit magnetite phase, while increase in growth temperature to 95 degrees C leads to the maghemite phase.</p>10alow temperature synthesis10amaghemite10amagnetite10aNanoparticles1 aBhagwat, Shrikant1 aSingh, Hema1 aAthawale, Anjali1 aHannoyer, Beatrice1 aJouen, Samuel1 aLefez, Benoit1 aKundaliya, Darshan1 aPasricha, Renu1 aKulkarni, Shailaja1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/low-temperature-synthesis-magnetite-and-maghemite-nanoparticles-001623nas a2200193   4500008004100000022001400041245015800055210006900213260012500282300002300407490000700430520075800437100002301195700001301218700002001231700002101251700002901272856012801301       2008                        eng d  a0003-695100aAnomalous microwave heating effects in Ce-doped La(0.7)Sr(0.3)MnO(3): possible role of grain boundary capacitative effects across cerium solubility limit0 aAnomalous microwave heating effects in Cedoped La07Sr03MnO3 poss  aCIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScJAN  aArticle No. 0125120 v923 a<p>Ce-doped manganite bulk nanocompacts [La(0.7-x)Ce(x)Sr(0.3)MnO(3) (0 &lt; x &lt; 0.1)] are studied for their microwave heating properties at 2.45 GHz. The heating effect is found to be nonmonotonic as a function of cerium concentration, and anomalously large heating (burning) is observed for a small concentration window near x=0.03. The x-ray diffraction studies show signatures of CeO(2) phase in x&gt;0.03 samples. The various characterizations collectively point to the key role of the developing grain boundary CeO(2) layer which leads to highest capacitative intergrain-coupling and related charging-discharging effects when it is thinnest near the apparent Ce solubility limit of x similar to 0.03. (c) 2008 American Institute of Physics.</p>1 aKale, Sangeeta, N.1 aMona, J.1 aLofland, S., E.1 aKulkarni, S., D.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/anomalous-microwave-heating-effects-ce-doped-la07sr03mno3-possible-role-grain-boundary-002037nas a2200253   4500008004100000022001400041245011800055210006900173260007100242300001400313490000700327520109000334100002101424700002301445700002201468700001801490700002301508700002001531700003001551700002401581700002901605700001901634856013001653       2008                        eng d  a0743-746300aBacteria-mediated precursor-dependent biosynthesis of superparamagnetic iron oxide and iron sulfide nanoparticles0 aBacteriamediated precursordependent biosynthesis of superparamag  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUN  a5787-57940 v243 a<p>The bacterium Actinobacter sp. has been shown to be capable of extracellularly synthesizing iron based magnetic nanoparticles, namely maghemite (gamma-Fe2O3) and greigite (Fe3S4) Under ambient conditions depending on the nature of precursors used. More precisely, the bacterium synthesized maghemite when reacted with ferric chloride and iron sulfide when exposed to the aqueous solution of ferric chloride-ferrous sulfate. Challenging the bacterium with different metal ions resulted in induction of different proteins, which bring about the specific biochemical transformations in each case leading to the observed products. Maghemite and iron sulfide nanoparticles show superparamagnetic characteristics as expected. Compared to the earlier reports of magnetite and greigite synthesis by magnetotactic bacteria and iron reducing bacteria, which take place strictly under anaerobic conditions, the present procedure offers significant advancement since the reaction occurs under aerobic condition. Moreover, reaction end products can be tuned by the choice of precursors used.</p>1 aBharde, Atul, A.1 aParikh, Rasesh, Y.1 aBaidakova, Marina1 aJouen, Samuel1 aHannoyer, Beatrice1 aEnoki, Toshiaki1 aPrasad, Bhagavatula L. V.1 aShouche, Yogesh, S.1 aOgale, Satishchandra, B.1 aSastry, Murali  uhttps://library.ncl.res.in/content/bacteria-mediated-precursor-dependent-biosynthesis-superparamagnetic-iron-oxide-and-iron-001220nas a2200169   4500008004100000022001400041245013000055210006900185260011000254300001400364490000700378520045800385100002100843700002900864700003000893856012700923       2008                        eng d  a0959-942800aCarbon nano horn and bovine serum albumin hierarchical composite: towards bio-friendly superhydrophobic protein film surfaces0 aCarbon nano horn and bovine serum albumin hierarchical composite  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN  a3422-34250 v183 a<p>Highly hydrophilic glass substrates when coated with films of carbon nano horns dispersed in the ubiquitous protein bovine serum albumin display hydrophobic characteristics. Incidentally both the materials used to create the final hydrophobic surface are known to be highly bio-compatible. The features observed are accredited to the replication of the micro and nanoscale hierarchical structures of carbon nano horns in the final film composite.</p>1 aJadhav, Anil, D.1 aOgale, Satishchandra, B.1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/carbon-nano-horn-and-bovine-serum-albumin-hierarchical-composite-towards-bio-friendly-002255nas a2200253   4500008004100000022001400041245010200055210006900157260007100226300001400297490000700311520133300318100002901651700002301680700002301703700001801726700002001744700002301764700001601787700002401803700001801827700002701845856012901872       2008                        eng d  a0897-475600aChemical inhomogeneity and mixed-state ferromagnetism in diluted magnetic semiconductor Co : TiO20 aChemical inhomogeneity and mixedstate ferromagnetism in diluted   a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcFEB  a1344-13520 v203 a<p>Diluted magnetic semiconductors (DMS) are among the most intensely investigated materials in recent times in view of their great application potential. Yet, they are also the most controversial because of the possibility of extrinsic effects attributable to dopant solubility and clustering, point defects, incorporation of unintentional impurities, etc. This has highlighted the central role of materials chemistry in rendering a specific microstate and property response. In this work, we provide a combined window of high-resolution scanning transmission electron microscopy and electron energy-loss spectrometry, X-ray absorption (XAS)/X-ray magnetic circular dichroism (XMCD), and magnetization measurements on epitaxial rutile CoxTi1-xO2 (x = 0-0.06) system (the first discovered oxide-DMS, which continues to be controversial) grown at low temperature (400 degrees C) under different ambient atmospheres. The study brings out a mixed-state scenario of ferromagnetism involving intrinsic DMS (uniform dopant distribution at low dopant concentration) and coupled cluster magnetism, involving cobalt associations within the matrix at higher concentrations. We also show that by matrix valence control during growth, it is possible to realize a uniform embedded cluster state and the related coupled cluster magnetism.</p>1 aOgale, Satishchandra, B.1 aKundaliya, Darshan1 aMehraeen, Shareghe1 aFu, Lian-feng1 aZhang, Shixiong1 aLussier, Alexandre1 aDvorak, Joe1 aBrowning, Nigel, D.1 aIdzerda, Yves1 aVenkatesan, Thirumalai  uhttps://library.ncl.res.in/content/chemical-inhomogeneity-and-mixed-state-ferromagnetism-diluted-magnetic-semiconductor-co-002727nas a2200253   4500008004100000022001400041245013800055210006900193260007100262300001200333490000700345520177100352100002502123700001902148700002202167700002602189700001802215700001902233700002402252700002302276700001802299700002902317856012702346       2008                        eng d  a0897-475600aCo : CdS diluted magnetic semiconductor nanoparticles: radiation synthesis, dopant-defect complex formation, and unexpected magnetism0 aCo CdS diluted magnetic semiconductor nanoparticles radiation sy  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJAN  a440-4460 v203 a<p>Incorporating a dopant into a nanoparticle is a nontrivial proposition in view of the size dependent surface versus bulk energy considerations and the intrinsic proximity of the surface to the interior, which facilitates migration to the surface. If realized and controlled, however, it can open up new avenues to novel nanomaterials. Some previous studies have shown the dopability of nanosystems but only with specific surface functionalization. Here, we demonstrate the successful dopant incorporation via a new route of pulsed high energy electron induced synthesis. We choose a system Co:CdS (dilutely cobalt doped cadmium sulfide) in view of the well-known application-worthy properties of CdS and the potential possibility of its conversion to a diluted magnetic semiconductor of interest to spintronics. By using various techniques, we show that matrix incorporation and uniform distribution of cobalt are realized in US nanocrystals without the need for additional chemical or physical manipulation. Optical and photoluminescence properties also support dopant incorporation. Interestingly, although magnetism is realized, it is weak, and it decreases at higher cobalt concentration. First principle density functional calculations are performed to understand this counterintuitive behavior. These calculations suggest that the introduction of parent cation or anion vacancies lead to magnetic moment reduction, albeit marginally. However, with some Co impurity fraction in the octahedral interstitial site inside the wurtzite cage, the magnetic moment drops down drastically. This study reveals that defect states may have an interesting role in dopant stabilization in nanosystems, with interesting system dependent consequences for the properties.</p>1 aBogle, Kashinath, A.1 aGhosh, Saurabh1 aDhole, Sanjay, D.1 aBhoraskar, Vasant, N.1 aFu, Lian-feng1 aChi, Miao-Fang1 aBrowning, Nigel, D.1 aKundaliya, Darshan1 aDas, Gour, P.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/co-cds-diluted-magnetic-semiconductor-nanoparticles-radiation-synthesis-dopant-defect-001518nas a2200289   4500008004100000022001400041245013400055210006900189260012500258300002300383490000700406520041900413653003300832653000900865653002500874653001900899653001800918653001600936653003300952653001900985100002001004700001801024700001601042700001901058700002901077856012201106       2008                        eng d  a0003-695100aEnhanced conversion efficiency in dye-sensitized solar cells based on ZnO bifunctional nanoflowers loaded with gold nanoparticles0 aEnhanced conversion efficiency in dyesensitized solar cells base  aCIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScDEC  aArticle No. 2431080 v933 a<p>The ZnO nanoflowers loaded with gold (Au) nanoparticles (NPs) are synthesized by a hydrothermal route using mixed precursors and controlled conditions. The dye-sensitized solar cells based on the ZnO nanoflowers with Au NPs show power conversion efficiency of 2.5%, which is considerably higher than that of ZnO nanoflowers without Au NPs. Detailed characterizations are performed, presented, and discussed.</p>10acrystal growth from solution10aGold10aII-VI semiconductors10aNanocomposites10aNanoparticles10asolar cells10awide band gap semiconductors10azinc compounds1 aDhas, Vivek, V.1 aMuduli, Subas1 aLee, Wonjoo1 aHan, Sung-Hwan1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/enhanced-conversion-efficiency-dye-sensitized-solar-cells-based-zno-bifunctional-002174nas a2200217   4500008004100000022001400041245010000055210006900155260007100224300001600295490000800311520133400319100002501653700002501678700002701703700002601730700002301756700002101779700002901800856012701829       2008                        eng d  a1932-744700aN-doped TiO2 nanoparticle based visible light photocatalyst by modified peroxide sol-gel method0 aNdoped TiO2 nanoparticle based visible light photocatalyst by mo  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcSEP  a14595-146020 v1123 a<p>The peroxide gel route is employed to synthesize N-doped TiO2 nanoparticles (NP) at low temperature using titanium tetraisopropoxide, ethylmethylamine, and hydrogen peroxide as precursors. Structural studies show anatase phase in the undoped titania NPs as well as at 5 at. % N-doped titania NPs, although with a degree of matrix disorder in the latter case. The annealing of N-doped titania NPs at different temperatures shows that above 400 degrees C nitrogen escapes the O-Ti-O matrix and at 500 degrees C the sample becomes crystalline. Transmission electron microscopy reveals that the particle size is in the range of 20-30 nm for the undoped TiO2 but only 5-10 nm for N-doped TiO2. At higher nitrogen concentration (10 at. %) bubble-like agglomerates form. FTIR and photoluminescence quenching also confirm the incorporation of nitrogen in anatase TiO2. Optical properties reveal an extended tailing of the absorption edge toward the visible region upon nitrogen doping. X-ray photoelectron spectroscopy is used to examine the electronic state of doped nitrogen and the associated possible electronic modification of the TiO2 matrix. Under visible light irradiation the undoped TiO2 NPs do not show any significant photocatalytic activity, as expected; however, the 5 at. % N-doped TiO2 NPs show excellent activity.</p>1 aJagadale, Tushar, C.1 aTakale, Shrikant, P.1 aSonawane, Ravindra, S.1 aJoshi, Hrushikesh, M.1 aPatil, Shankar, I.1 aKale, Bharat, B.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/n-doped-tio2-nanoparticle-based-visible-light-photocatalyst-modified-peroxide-sol-gel-001547nas a2200229   4500008004100000022001400041245012800055210006900183260007300252300001200325490000800337520068400345100001701029700002501046700001701071700001701088700002101105700001801126700002901144700001701173856012701190       2008                        eng d  a0009-261400aRapid phase-controlled microwave synthesis of nanostructured hierarchical tetragonal and cubic beta-In2S3 dandelion flowers0 aRapid phasecontrolled microwave synthesis of nanostructured hier  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB  a301-3050 v4523 a<p>Phase controlled synthesis of hierarchical nanostructured beta-In2S3 dandelion flowers is realized by a rapid microwave solvothermal process using indium metal, nitric acid and thiourea as precursors. The tetragonal and cubic phases of the compound have been successfully and separately stabilized in the same type of dandelion morphology by using aqueous-mediated and methanol-mediated synthesis, respectively. The possible mechanism responsible for phase control is discussed. Optical properties of the flowers as well as their hydrogen generation capability by photodecomposition of H2S under visible light are also reported. (c) 2007 Elsevier B.V. All rights reserved.</p>1 aNaik, S., D.1 aJagadale, Tushar, C.1 aApte, S., K.1 aSonawane, S.1 aKulkarni, M., V.1 aPatil, S., I.1 aOgale, Satishchandra, B.1 aKale, B., B.  uhttps://library.ncl.res.in/content/rapid-phase-controlled-microwave-synthesis-nanostructured-hierarchical-tetragonal-and-001800nas a2200217   4500008004100000022001400041245012000055210006900175260009500244300001200339490000800351520092000359653002501279653001701304653002101321653002401342100002301366700002901389700003801418856012601456       2008                        eng d  a0021-979700aTuning the hydrophobic properties of silica particles by surface silanization using mixed self-assembled monolayers0 aTuning the hydrophobic properties of silica particles by surface  a525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USAbACADEMIC PRESS INC ELSEVIER SCIENCEcFEB  a372-3790 v3183 a<p>Here we describe a novel method of preparing hydrophobic silica particles (100-150 nm; water contact angle of dropcasted film ranging from 60 degrees to 168 degrees) by surface functionalization using different alkyltrichlorosilanes. During their preparation, the molecular surface roughness is also concurrently engineered facilitating a change in both the surface chemical composition and the geometrical microstructure to generate hierarchical structures. The water contact angle has been measured on drop-cast film surface. The enhancement in the water contact angle on 3D (curved) SAMs in comparison to that on 2D (planar) surface is discussed using the Cassie-Baxter equation. These silica particles can be utilized for many potential applications including selective adsorbents and catalysts, chromatographic supports and separators in microfluidic devices. (C) 2007 Elsevier Inc. All rights reserved.</p>10aalkyltrichlorosilane10asilanization10asilica particles10asuperhydrophobicity1 aKulkami, Sneha, A.1 aOgale, Satishchandra, B.1 aVijayamohanan, Kunjukrishanan, P.  uhttps://library.ncl.res.in/content/tuning-hydrophobic-properties-silica-particles-surface-silanization-using-mixed-self-001532nas a2200253   4500008004100000022001400041245012400055210006900179260007900248300001200327490000700339520059300346653002900939653002300968653001700991653001601008653002501024100001601049700001701065700002001082700002901102700001901131856012801150       2009                        eng d  a1388-248100aChemical bath deposition of CdS quantum dots on vertically aligned ZnO nanorods for quantum dots-sensitized solar cells0 aChemical bath deposition of CdS quantum dots on vertically align  a360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USAbELSEVIER SCIENCE INCcJAN  a103-1060 v113 a<p>Formation of US quantum dots (Q dots) on the vertically aligned ZnO nanorods electrode was carried out by chemical bath deposition. The diameter and thickness of ZnO nanorods are similar to 100-150 nm and similar to 1.6 mu m, respectively, and CdS Q dots on ZnO nanorods have a diameter of smaller than 15 nm. In application of the Q dots-sensitized solar cells, composite film exhibited a power conversion efficiency of 0.54% under air mass 1.5 condition (80 mW/cm(2)), and incident-photon-to-current conversion efficiency showed 18.6%. (c) 2008 Elsevier B.V. All rights reserved.</p>10aChemical bath deposition10aPhotosensitization10aquantum dots10asolar cells10aWet-chemical process1 aLee, Wonjoo1 aMin, Sun, Ki1 aDhas, Vivek, V.1 aOgale, Satishchandra, B.1 aHan, Sung-Hwan  uhttps://library.ncl.res.in/content/chemical-bath-deposition-cds-quantum-dots-vertically-aligned-zno-nanorods-quantum-dots-001337nas a2200253   4500008004100000022001400041245012600055210006900181260007700250300001000327490000700337520040900344100002000753700002900773700001700802700001600819700001300835700001900848700001800867700002300885700002400908700002700932856012400959       2009                        eng d  a0935-964800aElectronic manifestation of cation-vacancy-induced magnetic moments in a transparent oxide semiconductor: anatase Nb:TiO20 aElectronic manifestation of cationvacancyinduced magnetic moment  aBOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcJUN  a2282+0 v213 a<p>Nb-doped anatase TiO2 thin films grown by pulsed-laser deposition show Kondo scattering in elctronic-transport measurements, providing evidence for the formation of magnetic moments. The origin of magnetism is attributed to cation (Ti) vacancies, confirmed by X-ray absorption spectroscopy and first-principle calculations. The Ti vacancies are controlled by oxygen partial pressure during growth.</p>1 aZhang, Shixiong1 aOgale, Satishchandra, B.1 aYu, Weiqiang1 aGao, Xingyu1 aLiu, Tao1 aGhosh, Saurabh1 aDas, Gour, P.1 aWee, Andrew, T. S.1 aGreene, Richard, L.1 aVenkatesan, Thirumalai  uhttps://library.ncl.res.in/content/electronic-manifestation-cation-vacancy-induced-magnetic-moments-transparent-oxide-001681nas a2200277   4500008004100000022001400041245007500055210006900130260012500199300001100324490000700335520070000342653001101042653001101053653002301064653002601087653002301113653002401136653001201160100002501172700002401197700002001221700002401241700002901265856010901294       2009                        eng d  a0003-695100aEnhanced nonvolatile resistive switching in dilutely cobalt doped TiO20 aEnhanced nonvolatile resistive switching in dilutely cobalt dope  aCIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScNOV  a2035020 v953 a<p>Incorporation of dilute concentration of dopant having a valence state different than that of the host cation enables controlled incorporation proximity vacancy defects for local charge balance. Since nonvolatile resistive switching is a phenomenon tied to such defects, it can be expected to be influenced by dilute doping. In this work, we demonstrate that enhanced nonvolatile resistive switching is realized in dilutely cobalt doped TiO2 films grown at room temperature. We provide essential characterizations and analyses. We suggest that the oxygen vacancies in the proximity of immobile dopants provide well distributed anchors for the development of systematic filamentary tracks.</p>10acobalt10aDoping10amagnetic switching10arandom-access storage10atitanium compounds10avacancies (crystal)10avalency1 aBogle, Kashinath, A.1 aBachhav, Mukesh, N.1 aDeo, Meenal, S.1 aValanoor, Nagarajan1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/enhanced-nonvolatile-resistive-switching-dilutely-cobalt-doped-tio2-001697nas a2200301   4500008004100000022001400041245011600055210006900171260009500240300001400335490000600349520063200355653003100987653001301018653001701031653001401048653001401062100002001076700001801096700002201114700001401136700002501150700002101175700002001196700002301216700002901239856012701268       2009                        eng d  a1533-488000aNon-templated hydrothermal growth of anisotropic magnetite nanostructures using hexamine as the directing agent0 aNontemplated hydrothermal growth of anisotropic magnetite nanost  a25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USAbAMER SCIENTIFIC PUBLISHERScOCT  a5823-58280 v93 a<p>Anisotropic growth of magnetite (Fe(3)O(4)) nanoparticles is achieved in a hydrothermal growth process using hexamine to play a dual role of oxide forming and directing agent. The samples are characterized by X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, squid magnetometry, ferromagnetic resonance technique, diffuse reflectance spectroscopy and Mossbauer spectroscopy, which collectively establish the formation of Fe(3)O(4) phase. Anisotropic structures such as nanorods and nanotubules are revealed and these are shown to exhibit good humidity sensing properties.</p>10aAnisotropic Nanostructures10aHexamine10ahydrothermal10amagnetite10aMossbauer1 aBhagwat, S., V.1 aJouen, Samuel1 aKundaliya, D., C.1 aSingh, H.1 aJagadale, Tushar, C.1 aAthawale, A., A.1 aLofland, S., E.1 aHannoyer, Beatrice1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/non-templated-hydrothermal-growth-anisotropic-magnetite-nanostructures-using-hexamine-001438nas a2200181   4500008004100000022001400041245012700055210006900182260007100251300001600322490000800338520070300346100001601049700001501065700002901080700001901109856012801128       2009                        eng d  a1932-744700aOptoelectronic photoinduced charge transfer system with mu 3PhN-Ru-3 cluster functionalized single-walled carbon nanotubes0 aOptoelectronic photoinduced charge transfer system with mu 3PhNR  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUN  a13403-134080 v1133 a<p>Optoelectronic photoinduced charges have been attracting great attention lately in view of their applicability to diverse optoelectronic device systems. Here, we report the design and implementation of a charge transfer system based on triruthenium (Ru) cluster compounds on viologen modified single-walled carbon nanotubes (V-SWNTs) by an in situ preparation method. We examine the photoinduced (intensity dependent and temporal) changes in the transport properties of the Ru-cluster functionalized V-SWNT coating and identify the possible charge transfer mechanism. Furthermore, we demonstrate the applicability of such Ru-cluster functionalized V-SWNT films to photoelectrochemical cells.</p>1 aLee, Wonjoo1 aKoo, Gumae1 aOgale, Satishchandra, B.1 aHan, Sung-Hwan  uhttps://library.ncl.res.in/content/optoelectronic-photoinduced-charge-transfer-system-mu-3phn-ru-3-cluster-functionalized-001922nas a2200145   4500008004100000022001400041245007000055210006800125260007700193300001400270490000700284520135400291100002901645856010201674       2010                        eng d  a0935-964800aDilute doping, defects, and ferromagnetism in metal oxide systems0 aDilute doping defects and ferromagnetism in metal oxide systems  aBOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcAUG  a3125-31550 v223 a<p>Over the past decade intensive research efforts have been carried out by researchers around the globe on exploring the effects of dilute doping of magnetic impurities on the physical properties of functional non-magnetic metal oxides such as TiO2 and ZnO. This effort is aimed at inducing spin functionality (magnetism, spin polarization) and thereby novel magneto-transport and magneto-optic effects in such oxides. After an early excitement and in spite of some very promising results reported in the literature, this field of diluted magnetic semiconducting oxides (DMSO) has continued to be dogged by concerns regarding uniformity of dopant incorporation, the possibilities of secondary ferromagnetic phases, and contamination issues. The rather sensitive dependence of magnetism of the DMSO systems on growth methods and conditions has led to interesting questions regarding the specific role played by defects in the attendant phenomena. Indeed, it has also led to the rapid re-emergence of the field of defect ferromagnetism. Many theoretical studies have contributed to the analysis of diverse experimental observations in this field and in some cases to the predictions of new systems and scenarios. In this review an attempt is made to capture the scope and spirit of this effort highlighting the successes, concerns, and questions.</p>1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/dilute-doping-defects-and-ferromagnetism-metal-oxide-systems-002049nas a2200325   4500008004100000022001400041245014200055210006900197260012500266300002300391490000700414520071600421653003101137653003301168653002401201653003001225653002901255653002801284653004801312653003501360653003701395653002401432100002001456700002501476700002001501700001901521700002401540700002901564856013001593       2010                        eng d  a0003-695100aNanoscale modulation of electronic states across unit cell steps on the surface of an epitaxial colossal magnetoresistance manganite film0 aNanoscale modulation of electronic states across unit cell steps  aCIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScJUN  aArticle No. 2631080 v963 a<p>The nature of electronic states near the edge of unit cell steps on the surface of epitaxial La(0.7)Sr(0.3)MnO(3) (LSMO) thin films grown by real-time reflection high energy electron diffraction monitored pulsed laser deposition is examined by scanning tunneling microscopy and scanning tunneling spectroscopy techniques. It is observed that the electronic states are strongly modulated near the step edge with considerably high gap at the edge and low gap on the terrace. This modulation weakens at low temperature. The temperature evolution of the density of states and the nature of gap in deep metallic state of LSMO are also discussed. (C) 2010 American Institute of Physics. [doi:10.1063/1.3455886]</p>10acolossal magnetoresistance10aelectronic density of states10alanthanum compounds10amagnetic epitaxial layers10aNanostructured materials10apulsed laser deposition10areflection high energy electron diffraction10ascanning tunnelling microscopy10ascanning tunnelling spectroscopy10astrontium compounds1 aRana, Abhimanyu1 aBogle, Kashinath, A.1 aGame, Onkar, S.1 aPatil, Shankar1 aValanoor, Nagarajan1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/nanoscale-modulation-electronic-states-across-unit-cell-steps-surface-epitaxial-colossal-001620nas a2200253   4500008004100000022001400041245011800055210006900173260009200242300001400334490000700348520069100355653001601046653000901062653001601071653001601087100002601103700002401129700001601153700001901169700002301188700002901211856012601240       2010                        eng d  a1533-488000aRoom temperature synthesis of rutile TiO2 hierarchical nanoneedle flower morphology for dye sensitized solar cell0 aRoom temperature synthesis of rutile TiO2 hierarchical nanoneedl  a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScSEP  a5894-58980 v103 a<p>Rutile TiO2 nanoneedle flowers (representing concurrent nano-micro hierarchical morphology) with high shape anisotropy ratio are synthesized at room temperature by using a simple and efficient one step electrochemical process of anodic dissolution. This process employs highly acidic bath of perchloric acid (pH &lt; 2) and a large current density on the surface of Titanium foil to form nanostructures. The diameter and length of rutile TiO2 nanoneedle is similar to 8 nm and 100 nm respectively (aspect ratio &gt; 10). Dye sensitized solar cell (DSSC) configured using such rutile TiO2 flowers is shown to exhibit IPCE of 30% and power conversion efficiency of similar to 3.6%.</p>10aAnodization10aDSSC10aNanoneedles10aRutile TiO21 aHyam, Rajeshkumar, S.1 aBhosale, Reshma, K.1 aLee, Wonjoo1 aHan, Sung-Hwan1 aHannoyer, Beatrice1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/room-temperature-synthesis-rutile-tio2-hierarchical-nanoneedle-flower-morphology-dye-001406nas a2200253   4500008004100000022001400041245010000055210006900155260010600224300001400330490000700344520045900351653002500810653001900835653001100854653002200865653002200887100002200909700002700931700002000958700002500978700002901003856012001032       2010                        eng d  a0025-540800aSurface texture and specific adsorption sites of sol-gel synthesized anatase TiO2 nanoparticles0 aSurface texture and specific adsorption sites of solgel synthesi  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcOCT  a1470-14750 v453 a<p>The surface properties of sot-gel synthesized anatase titania (TiO2) nanoparticles are probed by sorptiometry, infrared absorption spectroscopy, UV-vis diffuse reflectance spectroscopy and high resolution transmission electron microscopy. The results reveal strong correlations of the surface area, porosity, pyridine adsorption capacity and strength, and catalytic methylbutynol decomposition activity. (C) 2010 Elsevier Ltd. All rights reserved.</p>10aCatalytic properties10aNanostructures10aOxides10aSol-gel chemistry10aX-ray diffraction1 aZaki, Mohamed, I.1 aMekhemer, Gamal, A. H.1 aFouad, Nasr, E.1 aJagadale, Tushar, C.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/surface-texture-and-specific-adsorption-sites-sol-gel-synthesized-anatase-tio2-001204nas a2200217   4500008004100000022001400041245009700055210006900152260011000221300001400331490000700345520033500352100002200687700002500709700002200734700002300756700002400779700002300803700002900826856013100855       2010                        eng d  a1473-019700aTemplate assisted highly ordered novel self assembly of micro-reservoirs and its replication0 aTemplate assisted highly ordered novel self assembly of microres  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJAN  a1902-19060 v103 a<p>A novel method is developed for template assisted fabrication of a regular assembly of microcavity arrays. Simple micropatterns on PDMS mold are used to create complex geometries via solvent vapor back pressure in a biodegradable polymer. Cavities are in turn replicated in complimentary PDMS mushroom like microstructures.</p>1 aHire, Santosh, L.1 aShelke, Manjusha, V.1 aKale, Vinayak, S.1 aGalopin, Elisabeth1 aKulkarni, Mohan, G.1 aBoukherroub, Rabah1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/template-assisted-highly-ordered-novel-self-assembly-micro-reservoirs-and-its-replication-001261nas a2200181   4500008004100000022001400041245009600055210006900151260011000220300001600330490000700346520051300353100002000866700002600886700001500912700002900927856012300956       2011                        eng d  a1477-922600aChlorate ion mediated rutile to anatase reverse phase transformation in the TiO2 nanosystem0 aChlorate ion mediated rutile to anatase reverse phase transforma  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcSEP  a11374-113770 v403 a<p>Rutile TiO2 nanoneedles (8 nm x 100 nm) synthesized at room temperature by anodization in perchloric acid (pH &lt; 1) are shown to undergo an interesting reverse phase transformation to anatase nanoparticles (8 nm) at 300 degrees C only if the chlorate ions are maintained in the ambient medium. When chlorate ions are removed by multiple washing, the rutile phase and the needle morphology are maintained. The mechanism of formation of the ion-stabilized solid and its thermal evolution is discussed.</p>1 aBhosale, Reshma1 aHyam, Rajeshkumar, S.1 aDhanya, P.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/chlorate-ion-mediated-rutile-anatase-reverse-phase-transformation-tio2-nanosystem-001886nas a2200253   4500008004100000022001400041245008200055210006900137260010600206300001400312490000700326520094000333653003101273653004301304653001701347100002001364700001801384700002401402700002001426700002301446700002001469700002901489856011401518       2011                        eng d  a0038-092X00aEnhanced DSSC performance with high surface area thin anatase TiO2 nanoleaves0 aEnhanced DSSC performance with high surface area thin anatase Ti  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJUN  a1213-12190 v853 a<p>Thin anatase TiO2 nanoleaves (NLs) with high surface area (similar to 93 m(2)/g) are synthesized by hydrothermal route and dye-sensitized solar cells (DSSC) made using such NLs are compared with those made with hydro-thermally synthesized TiO2 nanoparticles and the Degussa P25 powder. The NLs-based DSSCs show increment of 16% and 24% in the total conversion efficiency over the cells made with NPs and P25 respectively. Interestingly, the highest increment in the conversion efficiency (similar to 35%) is achieved for cells made using a 50:50 (wt/wt) mixture of NLs and NPs. In this case the dye loading is found to be &gt;50% higher than the case of NP films. Moreover the DC resistance of diffusion of I-3(-) in electrolyte (as revealed by the electrochemical impedance spectroscopy) is substantially lower than the NP film case, other cell parameters being nominally comparable. (C) 2011 Elsevier Ltd. All rights reserved.</p>10aDye-sensitized solar cells10aElectrochemical impedance spectroscopy10ahydrothermal1 aDhas, Vivek, V.1 aMuduli, Subas1 aAgarkar, Shruti, A.1 aRana, Abhimanyu1 aHannoyer, Beatrice1 aBanerjee, Rahul1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/enhanced-dssc-performance-high-surface-area-thin-anatase-tio2-nanoleaves-001559nas a2200205   4500008004100000022001400041245011900055210006900174260012500243300002300368490000700391520070000398100002401098700001501122700001801137700002301155700002901178700001501207856013101222       2011                        eng d  a0003-695100aEvidence of lateral heat transfer during laser assisted atom probe tomography analysis of large band gap materials0 aEvidence of lateral heat transfer during laser assisted atom pro  aCIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScAUG  aArticle No. 0841010 v993 a<p>Investigation of wustite (FeO), iron (Fe), and silicon (Si) specimens by infrared laser assisted three dimensional atom probe tomography shows evidence of confined surface absorption of the laser energy as the mechanism of laser assisted field evaporation for high band gap materials. The absorption region is shown to be located on the laser illumination side, close to the specimen apex. A simple model based on thermal diffusivity and spatial extent of the absorption region is derived and applied to the experimental results. The values of thermal diffusivity thus obtained are in good agreement with the published data. (C) 2011 American Institute of Physics. [doi:10.1063/1.3622647]</p>1 aBachhav, Mukesh, N.1 aDanoix, R.1 aVurpillot, F.1 aHannoyer, Beatrice1 aOgale, Satishchandra, B.1 aDanoix, F.  uhttps://library.ncl.res.in/content/evidence-lateral-heat-transfer-during-laser-assisted-atom-probe-tomography-analysis-large-001748nas a2200241   4500008004100000022001400041245010600055210006900161260012500230300002300355490000700378520081900385100002201204700002501226700001401251700001401265700001901279700001501298700002901313700001901342700001801361856012701379       2011                        eng d  a0003-695100aFerroelectric and electrical characterization of multiferroic BiFeO3 at the single nanoparticle level0 aFerroelectric and electrical characterization of multiferroic Bi  aCIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScDEC  aArticle No. 2529050 v993 a<p>Ferroelectric BiFeO3 (BFO) nanoparticles deposited on epitaxial substrates of SrRuO3 (SRO) and La1-xSrxMnO3 (LSMO) were studied using band excitation piezoresponse spectroscopy (BEPS), piezoresponse force microscopy (PFM), and ferromagnetic resonance (FMR). BEPS confirms that the nanoparticles are ferroelectric in nature. Switching behavior of nanoparticle clusters were studied and showed evidence for inhomogeneous switching. The dimensionality of domains within nanoparticles was found to be fractal in nature, with a dimensionality constant of similar to 1.4, on par with ferroelectric BFO thin-films under 100 nm in thickness. Ferromagnetic resonance studies indicate BFO nanoparticles only weakly affect the magnetic response of LSMO. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3671392]</p>1 aVasudevan, R., K.1 aBogle, Kashinath, A.1 aKumar, A.1 aJesse, S.1 aMagaraggia, R.1 aStamps, R.1 aOgale, Satishchandra, B.1 aPotdar, H., S.1 aNagarajan, V.  uhttps://library.ncl.res.in/content/ferroelectric-and-electrical-characterization-multiferroic-bifeo3-single-nanoparticle-001374nas a2200241   4500008004100000022001400041245009000055210006900145260007300214300001200287490000800299520050700307653002600814653003700840653001200877100002400889700001500913700001500928700002300943700002900966700001800995856011901013       2011                        eng d  a0304-399100aInvestigation of wustite (Fe1-xO) by femtosecond laser assisted atom probe tomography0 aInvestigation of wustite Fe1xO by femtosecond laser assisted ato  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY  a584-5880 v1113 a<p>In this paper, we report results obtained from laser assisted three-dimensional (3-D) atom probe tomography (APT) on wustite (Fe1-xO). Oxides are generally insulating and hence hard to analyse in conventional electrical assisted APT. To overcome this problem, femtosecond laser pulses are used instead of voltage pulses. Here we discuss some aspects of pulsed laser field evaporation and optimization of parameters to achieve better chemical accuracy. (C) 2010 Elsevier B.V. All rights reserved.</p>10aAtom probe tomography10aLaser assisted field evaporation10aWustite1 aBachhav, Mukesh, N.1 aDanoix, R.1 aDanoix, F.1 aHannoyer, Beatrice1 aOgale, Satishchandra, B.1 aVurpillot, F.  uhttps://library.ncl.res.in/content/investigation-wustite-fe1-xo-femtosecond-laser-assisted-atom-probe-tomography-001781nas a2200289   4500008004100000022001400041245012200055210006900177260007100246300001400317490000600331520076000337653002101097653001301118653003001131653001401161653001501175653001101190100002401201700002501225700002001250700002901270700001801299700002101317700002901338856012401367       2011                        eng d  a1944-824400aIsobutrin from butea monosperma (flame of the forest): a promising new natural sensitizer belonging to chalcone class0 aIsobutrin from butea monosperma flame of the forest a promising   a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUL  a2440-24440 v33 a<p>In this work, ``isobutrin'', an ecofriendly sensitizer that is extracted from Butea monosperma (commonly known as ``Flame of the Forest'') flowers, is introduced. It is a bright yellow pigment belonging to the chalcone class and is examined as a sensitizer for optoelectronic applications. It is observed that chelation of this dye with Ti ions results into a strong dye-TiO(2) charge transfer (DTCT) band in the visible region. This Ti-Isobutrin chelate is stable, irreversible and its formation is studied using Benesi-Hildebrand plot. The locations of HOMO-LUMO states of the Ti-isobutrin chelate and the corresponding band alignment with TiO(2) are obtained. Also, a thermal stability test revealed that isobutrin is stable above 100 degrees C.</p>10aButea monosperma10achalcone10adye-sensitized solar cell10aisobutrin10asensitizer10aTiO(2)1 aAgarkar, Shruti, A.1 aKulkarni, Roshan, R.1 aDhas, Vivek, V.1 aChinchansure, Ashish, A.1 aHazra, Partha1 aJoshi, Swati, P.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/isobutrin-butea-monosperma-flame-forest-promising-new-natural-sensitizer-belonging-002069nas a2200229   4500008004100000022001400041245009800055210006900153260011100222300001400333490000700347520120200354100002201556700001901578700001801597700001701615700001801632700001801650700002301668700002901691856011901720       2011                        eng d  a1477-922600aMaghemite (hematite) core (shell) nanorods via thermolysis of a molecular solid of Fe-complex0 aMaghemite hematite core shell nanorods via thermolysis of a mole  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYc2011  a8003-80110 v403 a<p>An Fe-metal complex with 2'-hydroxy chalcone (2'-HC) ligands [Fe(III) (2'-hydroxy chalcone) 3] is synthesized by a chemical route and is subjected to different thermal treatments. Upon thermolysis in air at 450 degrees C for 3 h the complex yields maghemite (gamma-Fe(2)O(3)) nanorods with a thin hematite (alpha-Fe(2)O(3)) shell. X-Ray diffraction (XRD), Mossbauer spectroscopy, diffuse reflectance spectroscopy (UV-DRS), high resolution transmission electron microscopy (HR-TEM), field emission scanning electron microscopy (FE-SEM) and vibrating sample magnetometry (VSM) are used to characterize the samples. The stability of the ligand and the Fe-complex is further examined by using thermogravimmetric/differential thermal analysis (TGA/DTA). We suggest a residual ligand controlled mechanism for the formation of an anisotropic nanostructure in a crumbling molecular solid undergoing ligand decomposition. Since the band gap of iron oxide is in the visible range, we explored the use of our core shell nano-rod sample for photocatalytic activity for H(2) generation by H(2)S splitting under solar light. We observed high photocatalytic activity for hydrogen generation (75 ml h(-1)).</p>1 aChaudhari, N., S.1 aWarule, S., S.1 aMuduli, Subas1 aKale, B., B.1 aJouen, Samuel1 aLefez, Benoit1 aHannoyer, Beatrice1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/maghemite-hematite-core-shell-nanorods-thermolysis-molecular-solid-fe-complex-002218nas a2200253   4500008004100000022001400041245010100055210006900156260008100225300002300306490000700329520130100336100001501637700001601652700001801668700002101686700001901707700002401726700001801750700002301768700001901791700002901810856012501839       2011                        eng d  a0957-448400aMagnetite/CdTe magnetic-fluorescent composite nanosystem for magnetic separation and bio-imaging0 aMagnetiteCdTe magneticfluorescent composite nanosystem for magne  aTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLANDbIOP PUBLISHING LTDcJUN  aArticle No. 2251010 v223 a<p>A new synthesis protocol is described to obtain a CdTe decorated magnetite bifunctional nanosystem via dodecylamine (DDA) as cross linker. High resolution transmission electron microscopy (HRTEM), energy-dispersive x-ray spectroscopy (EDAX), vibrating sample magnetometry (VSM), Fourier transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS) and fluorescence microscopy are used to characterize the constitution, size, composition and physical properties of these superparamagnetic-fluorescent nanoparticles. These CdTe decorated magnetite nanoparticles were then functionalized with anti-epidermal growth factor receptor (EGFR) antibody to specifically target cells expressing this receptor. The EGFR is a transmembrane glycoprotein and is expressed on tumor cells from different tissue origins including human leukemic cell line Molt-4 cells. The magnetite-CdTe composite nanosystem is shown to perform excellently for specific selection, magnetic separation and fluorescent detection of EGFR positive Molt-4 cells from a mixed population. Flow cytometry and confocal laser scanning microscopy results show that this composite nanosystem has great potential in antibody functionalized magnetic separation and imaging of cells using cell surface receptor antibody.</p>1 aKale, Anup1 aKale, Sonia1 aYadav, Prasad1 aGholap, Haribhau1 aPasricha, Renu1 aJog, Jyoti, Prakash1 aLefez, Benoit1 aHannoyer, Beatrice1 aShastry, Padma1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/magnetitecdte-magnetic-fluorescent-composite-nanosystem-magnetic-separation-and-bio-001895nas a2200265   4500008004100000022001400041245008600055210006900141260013700210300001400347490000700361520091500368653002701283653002701310653001701337653000801354100001801362700002201380700001601402700001501418700002901433700002201462700002501484856012001509       2011                        eng d  a0956-566300aQuantum dot based immunosensor using 3D circular microchannels fabricated in PDMS0 aQuantum dot based immunosensor using 3D circular microchannels f  aOXFORD FULFILLMENT CENTRE THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER ADVANCED TECHNOLOGYcFEB  a3050-30530 v263 a<p>Microchannel is basic functional component of microfluidic chip and every step-forward of its construction technique has been receiving concern all over the world. The present work describes a novel, rapid and simple fabrication technique for building 3D microchannels in poly(dimethyl siloxane) (PDMS) elastomer. These microchannels were used for rapid detection of antigens (E. coli) by quantum dot (QD) based approach. Luminescent QD (CdTe) were synthesized by aqueous method and characterized using high resolution transmission electron microscopy (HRTEM), fluorescence spectroscopy and X-ray diffraction (XRD). The QDs were functionalized with anti-E. coli antibodies for immuno-detection. The reported process allowed easier and faster method of fabrication of circular 3D micochannels and demonstrated their potential use in an immuno-biosensor device. (C) 2010 Elsevier B.V. All rights reserved.</p>10aCapillary driven flows10aCircular microfluidics10aImmunosensor10aQDs1 aMorarka, Amit1 aAgrawal, Shailaja1 aKale, Sonia1 aKale, Anup1 aOgale, Satishchandra, B.1 aPaknikar, Kishore1 aBodas, Dhananjay, S.  uhttps://library.ncl.res.in/content/quantum-dot-based-immunosensor-using-3d-circular-microchannels-fabricated-pdms-002095nas a2200229   4500008004100000022001400041245009200055210006900147260007100216300001600287490000800303520124300311100002201554700002001576700002001596700002001616700002101636700002401657700002901681700002901710856012601739       2011                        eng d  a1932-744700aSelectivity tailoring in liquid phase oxidation over MWNT-Mn3O4 nanocomposite catalysts0 aSelectivity tailoring in liquid phase oxidation over MWNTMn3O4 n  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAUG  a15440-154480 v1153 a<p>Highly selective multiwalled nanotubes (MWNT)-Mn3O4 nano-composite catalyst was designed for liquid phase oxidation of p-cresol, which gave highest selectivity of 90% to the first step oxidation product, p-hydroxy benzyl alcohol. Mn3O4 nanoparticles and MWNT-Mn3O4 nanocomposites were synthesized by coprecipitation route using mixed precursors under controlled conditions. The phase purity of Mn3O4 and the formation of MWNT-Mn3O4 nanocomposites were confirmed by X-ray diffraction, Raman spectroscopy, and X-ray photoelectron spectroscopy. High-resolution transmission electron microscopy revealed the selective exposure of (101) and (001) planes of Mn3O4 nanoparticles in the MWNT-Mn3O4 composite, while lowering in oxidizing capacity of MWNT-Mn3O4 nanocomposite confirmed by cyclic voltametry was due to incorporation of electron rich MWNT. Thus, selectivity tuning of the new material (MWNT-Mn3O4 nanocomposite) was found to be due to alteration in both geometric as well as electronic properties. A plausible reaction pathway also has been proposed involving the predominant role of nucleophilic lattice oxygen (O2-) species due to exposure of particular crystal planes giving highest selectivity to p-hydroxy benzyl alcohol.</p>1 aBiswal, Mandakini1 aDhas, Vivek, V.1 aMate, Vivek, R.1 aBanerjee, Abhik1 aPachfule, Pradip1 aAgrawal, Kanika, L.1 aOgale, Satishchandra, B.1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/selectivity-tailoring-liquid-phase-oxidation-over-mwnt-mn3o4-nanocomposite-catalysts-001936nas a2200193   4500008004100000022001400041245013200055210006900187260011000256300001400366490000600380520111600386100001801502700002001520700002001540700002401560700002901584856012901613       2011                        eng d  a1754-569200aShape preserving chemical transformation of ZnO mesostructures into anatase TiO2 mesostructures for optoelectronic applications0 aShape preserving chemical transformation of ZnO mesostructures i  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAUG  a2835-28390 v43 a<p>In this work we report on the synthesis of various ZnO mesostructures (rods, spheres, flakes and flower-like morphologies) by hydrothermal and co-precipitation methods and their remarkable and complete transformation into anatase TiO2 mesostructures with nominally similar shapes using controlled low temperature TiCl4 treatment. Various techniques are used to demonstrate the phase purity and morphology details. Based on the careful examination of the transformation of ZnO rods into TiO2 tubes we suggest a mechanism which embodies initial formation of a thin TiO2 shell on the ZnO surface by ion exchange (Ti4+-Zn2+) followed by Zn diffusion through the shell and its oxidation on the surface. We used these converted TiO2 mesostructures for light harvesting in Dye Sensitized Solar Cells (DSSCs) to enhance the conversion efficiency. It is shown that DSSCs made using a doctor bladed film of TiO2 nanoparticles with an overlayer of TiCl4 treated ZnO flowers yield a solar cell efficiency of 6.9% which is considerably higher than that with only TiO2 nanoparticle film (5.4%) of comparable thickness.</p>1 aMuduli, Subas1 aGame, Onkar, S.1 aDhas, Vivek, V.1 aYengantiwar, Ashish1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/shape-preserving-chemical-transformation-zno-mesostructures-anatase-tio2-mesostructures-001630nas a2200241   4500008004100000022001400041245010900055210006900164260010600233300001400339490000800353520069400361653002401055653002801079653000901107653003401116100002001150700002001170700002001190700002401210700002901234856012501263       2011                        eng d  a0038-109800aStrong electric field modulation of transport in PVDF/MWCNT nanocomposite near the percolation threshold0 aStrong electric field modulation of transport in PVDFMWCNT nanoc  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcNOV  a1612-16150 v1513 a<p>A nanocomposite comprising of multiwalled carbon nanotubes (MWCNT) embedded in ferroelectric Poly(vinylidene fluoride) PVDF polymer matrix is examined for electric field induced transport modulation. The pulsed laser deposition (PLD) grown thin films of the nanocomposite with different MWCNT content were characterized. When used as a channel layer in a field effect transistor configuration, a strong electric field modulation of the transport was realized just below the percolation threshold. We believe that this nanocomposite non-percolating channel concept can provide several opportunities for FET devices for organic electronics. (C) 2011 Elsevier Ltd. All rights reserved.</p>10aField effect device10apulsed laser deposition10aPVDF10aScanning tunneling microscopy1 aChanmal, Chetan1 aDeo, Meenal, S.1 aRana, Abhimanyu1 aJog, Jyoti, Prakash1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/strong-electric-field-modulation-transport-pvdfmwcnt-nanocomposite-near-percolation-001555nas a2200229   4500008004100000022001400041245007200055210006700127260011000194300001400304490000600318520071600324100002001040700002101060700002001081700002401101700002401125700002001149700002401169700002901193856010301222       2011                        eng d  a2040-336400aStrong photo-response in a flip-chip nanowire p-Cu2O/n-ZnO junction0 aStrong photoresponse in a flipchip nanowire pCu2OnZnO junction  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcOCT  a4706-47120 v33 a<p>Cu2O nanoneedles are synthesized on a copper substrate by a simple anodization and reducing ambient annealing protocol. ZnO nanorods are grown on ITO coated glass by a low temperature chemical route. The electronic and photo-response properties of the p-Cu2O/n-ZnO flip-chip heterojunction are then studied and analyzed. We show that the I-V characteristic is rectifying and the junction exhibits a good photoresponse (similar to 120% under 1 V reverse bias) under AM 1.5 (1 Sun) illumination. This nano-heterojunction photo-response is far stronger as compared to that of a pulsed laser deposited thin film p-Cu2O/n-ZnO heterojunction, which can be attributed to higher junction area in the former case.</p>1 aDeo, Meenal, S.1 aMujawar, Sarfraj1 aGame, Onkar, S.1 aYengantiwar, Ashish1 aBanpurkar, Arun, G.1 aKulkarni, Sneha1 aJog, Jyoti, Prakash1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/strong-photo-response-flip-chip-nanowire-p-cu2on-zno-junction-001942nas a2200253   4500008004100000022001400041245008500055210006900140260007300209300001200282490000800294520100000302653005101302653001701353653003101370653002601401653002001427100002201447700002001469700002701489700002501516700002901541856011801570       2011                        eng d  a0927-775700aTiO2 nanoparticle size dependence of porosity, adsorption and catalytic activity0 aTiO2 nanoparticle size dependence of porosity adsorption and cat  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJUN  a195-2000 v3853 a<p>The issue of size-sensitivity of the surface properties of anatase TiO2 is addressed by examining three samples synthesized by aqueous sol-gel method having different particle sizes on the nanoscale (8-19 nm). A number of characterization methods, namely, X-ray powder diffractometry, infrared spectroscopy, UV-vis diffuse reflectance spectroscopy, sorptiometry and electron microscopy are employed. The data obtained reveal interrelated dependencies of the surface area, porosity, nitrogen and pyridine adsorption capacity and strength, and catalytic methylbutynol decomposition activity on the size of titania nanoparticles. Pertinent size-dependent bulk properties are also revealed and used to account for the changes conceded by the surface properties. Accordingly, going from 19 to 8-nm sized titania particles has been found to stabilize the anatase structure, weaken the surface acidity, and blueshift the UV absorption edge of titania. (C) 2011 Elsevier B.V. All rights reserved.</p>10aCatalytic methylbutynol decomposition activity10aNano-titania10aParticle size dependencies10aPyridine sorptiometry10aSurface texture1 aZaki, Mohamed, I.1 aFouad, Nasr, E.1 aMekhemer, Gamal, A. H.1 aJagadale, Tushar, C.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/tio2-nanoparticle-size-dependence-porosity-adsorption-and-catalytic-activity-001333nas a2200229   4500008004100000022001400041245004900055210004900104260010600153300001400259490000800273520058400281653002300865653001200888653001400900653001900914100001800933700002100951700002400972700002900996856007801025       2012                        eng d  a0038-109800aCarbon nanoscrolls by pyrolysis of a polymer0 aCarbon nanoscrolls by pyrolysis of a polymer  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcDEC  a2092-20950 v1523 a<p>3D network of carbon nanoscrolls was synthesized starting from pyrolysis of poly(acrylic acid-co-maleic acid) sodium salt. It is a catalyst-free process where pyrolysis of polymer leads to formation of carbon form and sodium carbonate. Upon water soaking of pyrolysis product, the carbon form undergoes self-assembly to form carbon nanoscrolls. The interlayer distance between the walls of carbon nanoscroll was found to be 0.34 nm and the carbon nanoscrolls exhibited a surface area of 188 m(2)/g as measured by the BET method. (c) 2012 Elsevier Ltd. All rights reserved.</p>10aCarbon nanoscrolls10aPolymer10aPyrolysis10asupercapacitor1 aYadav, Prasad1 aWarule, Sambhaji1 aJog, Jyoti, Prakash1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/carbon-nanoscrolls-pyrolysis-polymer-002267nas a2200265   4500008004100000022001400041245011100055210006900166260007300235300001200308490000600320520129400326653001701620653001801637653002601655653002701681100002301708700002101731700001701752700002501769700002701794700002201821700002901843856012901872       2012                        eng d  a1549-963400aCharacterization of biocompatible NiCo2O4 nanoparticles for applications in hyperthermia and drug delivery0 aCharacterization of biocompatible NiCo2O4 nanoparticles for appl  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY  a452-4590 v83 a<p>Monodispersed, superparamagnetic nickel cobaltite (NCO) nanoparticles were functionalized using mercaptopropionic acid (MPA). MPA conjugates with NCO forming a metal-carboxylate linkage, with the MPA-MPA interaction occurring via formation of disulfide bonds, leaving another carboxyl end free for additional conjugation. The cytotoxicity studies on NCO-MPA show cell viability of similar to 100% up to a dosage of 40 mu g/mL on SiHa, MCF7, and B16F10 cell lines, and on mouse primary fibroblasts. Time-dependent cell viability studies done for a duration of 72 hours showed the cell lines' viability up to 80% for dosages as high as 80 mu g/mL. Negligible leaching (&lt;5 ppm) of ionic Co or Ni was noted into the delivery medium. Upon subjecting the NCO-MPA dispersion (0.1 mg/mL) to radiofrequency absorption, the nanoparticles were heated to 75 degrees C within 2 minutes, suggesting its promise as a magnetic hyperthermia agent. Furthermore, the amino acid lysine and the drug cephalexin were successfully adducted to the NCO system, suggesting its potential for drug delivery. From the Clinical Editor: NCO-MPA nanopartciles were found to be promising magnetic hyperthermia agents, suggesting potential future clinical applications. (C) 2012 Elsevier Inc. All rights reserved.</p>10aCytotoxicity10adrug delivery10aMagnetic hyperthermia10aMagnetic nanoparticles1 aKale, Sangeeta, N.1 aJadhav, Anil, D.1 aVerma, Seema1 aKoppikar, Soumya, J.1 aKaul-Ghanekar, Ruchika1 aDhole, Sanjay, D.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/characterization-biocompatible-nico2o4-nanoparticles-applications-hyperthermia-and-drug-001218nas a2200181   4500008004100000022001400041245013600055210006900191260011000260300001600370490000600386520042600392100002400818700002000842700001800862700002900880856012700909       2012                        eng d  a2046-206900aDye sensitized solar cell (DSSC) by a novel fully room temperature process: a solar paint for smart windows and flexible substrates0 aDye sensitized solar cell DSSC by a novel fully room temperature  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcMAR  a11645-116490 v23 a<p>We report the development of a titania-nanoparticle-based solar paint which gives a conversion efficiency of 3.6% on FTO/glass substrates under fully room temperature processing. The paint cures quickly saving time in the cell fabrication process. Even on a flexible ITO/PET substrate efficiency of 2.4% was achieved. We present and analyze the results of described materials and device property characterizations.</p>1 aAgarkar, Shruti, A.1 aDhas, Vivek, V.1 aMuduli, Subas1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/dye-sensitized-solar-cell-dssc-novel-fully-room-temperature-process-solar-paint-smart-002036nas a2200301   4500008004100000022001400041245009900055210006900154260007700223300001400300490000700314520097200321653002201293653002401315653002901339653002001368653002101388100002501409700002001434700001901454700002201473700001901495700001801514700002001532700002901552700002401581856012901605       2012                        eng d  a1616-301X00aEpitaxial magnetic oxide nanocrystals via phase decomposition of bismuth perovskite precursors0 aEpitaxial magnetic oxide nanocrystals via phase decomposition of  aBOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcDEC  a5224-52300 v223 a<p>The phase instability of bismuth perovskite (BiMO3), where M is a ferromagnetic cation, is exploited to create self-assembled magnetic oxide nanocrystal arrays on oxide supports. Conditions during pulsed laser deposition are tuned so as to induce complete breakdown of the perovskite precursor into bismuth oxide (Bi2O3) and metal oxide (M-Ox) pockets. Subsequent cooling in vacuum volatizes the Bi2O3 leaving behind an array of monodisperse nanocrystals. In situ reflective high energy electron diffraction beam is exploited to monitor the synthesis in real-time. Analysis of the patterns confirms the phase separation and volatization process. Successful synthesis of M-Ox, where M = Mn, Fe, Co, and Cr, is shown using this template-free facile approach. Detailed magnetic characterization of nanocrystals is carried out to reveal the functionalities such as magnetic anisotropy as well as larger than bulk moments, as expected in these oxide nanostructures.</p>10aBi2O3 evaporation10abismuth perovskites10aepitaxial nanostructures10amagnetic oxides10aphase separation1 aBogle, Kashinath, A.1 aCheung, Jeffrey1 aChen, Yong-Lun1 aLiao, Sheng-Chieh1 aLai, Chih-Hung1 aChu, Ying-Hao1 aGregg, John, M.1 aOgale, Satishchandra, B.1 aValanoor, Nagarajan  uhttps://library.ncl.res.in/content/epitaxial-magnetic-oxide-nanocrystals-phase-decomposition-bismuth-perovskite-precursors-001592nas a2200253   4500008004100000022001400041245014200055210006900197260011000266300001400376490000600390520058900396100001900985700002401004700002401028700002101052700001801073700002001091700002401111700002301135700002301158700002901181856012801210       2012                        eng d  a2040-336400aLaser synthesized super-hydrophobic conducting carbon with broccoli-type morphology as a counter-electrode for dye sensitized solar cells0 aLaser synthesized superhydrophobic conducting carbon with brocco  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcNOV  a6730-67340 v43 a<p>A laser photochemical process is introduced to realize superhydrophobic conducting carbon coatings with broccoli-type hierarchical morphology for use as a metal-free counter electrode in a dye sensitized solar cell. The process involves pulsed excimer laser irradiation of a thin layer of liquid haloaromatic organic solvent o-dichlorobenzene (DCB). The coating reflects a carbon nanoparticle-self assembled and process-controlled morphology that yields solar to electric power conversion efficiency of 5.1% as opposed to 6.2% obtained with the conventional Pt-based electrode.</p>1 aGokhale, Rohan1 aAgarkar, Shruti, A.1 aDebgupta, Joyashish1 aShinde, Deodatta1 aLefez, Benoit1 aBanerjee, Abhik1 aJog, Jyoti, Prakash1 aMore, Mahendra, A.1 aHannoyer, Beatrice1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/laser-synthesized-super-hydrophobic-conducting-carbon-broccoli-type-morphology-counter-001511nas a2200229   4500008004100000022001400041245011300055210006900168260011000237300001600347490000700363520060700370100002000977700001900997700002101016700002401037700002101061700001801082700002301100700002901123856012901152       2012                        eng d  a0959-942800aMOF derived porous carbon-Fe3O4 nanocomposite as a high performance, recyclable environmental superadsorbent0 aMOF derived porous carbonFe3O4 nanocomposite as a high performan  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN  a19694-196990 v223 a<p>A high surface area carbon composite with Fe3O4 nanoparticles is synthesized by pyrolysis of an iron containing Metal Organic Framework (MOF). The composite can be prepared by annealing the MOF at different temperatures (500 degrees C and 600 degrees C), each case exhibiting unique properties in terms of the hydrophobic behaviour and surface area, resulting in specific applicability domains. We highlight the exceptional behaviour of this material as a magnetically separable and recyclable superadsorbent for removal and recovery of environmental pollutants (oil/hydrocarbon and dye/phenol).</p>1 aBanerjee, Abhik1 aGokhale, Rohan1 aBhatnagar, Sumit1 aJog, Jyoti, Prakash1 aBhardwaj, Monika1 aLefez, Benoit1 aHannoyer, Beatrice1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/mof-derived-porous-carbon-fe3o4-nanocomposite-high-performance-recyclable-environmental-001836nas a2200277   4500008004100000022001400041245009400055210006900149260010600218300001400324490000700338520084400345653001701189653000701206653003101213653002101244653001701265100001801282700002001300700002001320700002201340700002501362700001701387700002901404856012501433       2012                        eng d  a0038-092X00aTiO2-Au plasmonic nanocomposite for enhanced dye-sensitized solar cell (DSSC) performance0 aTiO2Au plasmonic nanocomposite for enhanced dyesensitized solar   aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcMAY  a1428-14340 v863 a<p>Anatase TiO2 nanoparticles dressed with gold nanoparticles were synthesized by hydrothermal process by using mixed precursor and controlled conditions. Diffused Reflectance Spectra (DRS) reveal that in addition to the expected TiO2 interband absorption below 360 nm gold surface plasmon feature occurs near 564 nm. It is shown that the dye sensitized solar cells made using TiO2-Au plasmonic nanocomposite yield superior performance with conversion efficiency (CE) of similar to 6% (no light harvesting), current density (J(SC)) of similar to 13.2 mA/cm(2), open circuit voltage (V-oc) of similar to 0.74 V and fill factor (FF) 0.61; considerably better than that with only TiO2 nanoparticles (CE similar to 5%, J(SC) similar to 12.6 mA/cm(2), V-oc similar to 0.70 V, FF similar to 0.56). (C) 2012 Elsevier Ltd. All rights reserved.</p>10aAnatase TiO210aAu10aDye-sensitized solar cells10aHybrid composite10ahydrothermal1 aMuduli, Subas1 aGame, Onkar, S.1 aDhas, Vivek, V.1 aVijayamohanan, K.1 aBogle, Kashinath, A.1 aValanoor, N.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/tio2-au-plasmonic-nanocomposite-enhanced-dye-sensitized-solar-cell-dssc-performance-002145nas a2200181   4500008004100000022001400041245015800055210006900213260007100282300001400353490000800367520134000375100003301715700002401748700002901772700003001801856013201831       2012                        eng d  a1932-744700aToward a quantitative correlation between microstructure and DSSC efficiency: a case study of TiO2-xNx nanoparticles in a disordered mesoporous framework0 aToward a quantitative correlation between microstructure and DSS  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJAN  a2581-25870 v1163 a<p>The efficiency (eta) of a dye-sensitized solar cell (DSSC) depends on various parameters, the critical factors being a fast charge carrier transport and a slow rate of electron-hole recombination. The present article describes a simple combustion synthesis method to prepare TiO2-xNx with following four important features that directly influences eta: (1) a disordered mesoporous structural framework with high surface area to give high dye-loading and a small diffusion length for charge carriers allowing rapid movement to the surface; (2) electrically interconnected nanocrystalline TiO2-xNx particles with good necking and predominant (101) anatase facets to minimize electron-hole recombination; (3) low charge storage capacity in the titania framework; and (4) surface unsaturation assisting all the above factors. The pseudo-three-dimensional nature of mesoporous TiO2-xNx with the above features demonstrates the importance of textural features, and porosity allows faster diffusion of charge carriers to surface and their utilization to generate power. A quantitative correlation between interconnected nanoparticles over larger distances in a mesoporous framework and eta is demonstrated. This study also demonstrates an inexpensive and rapid method of producing the photoanode material with high eta in about 10 min.</p>1 aSivaranjani, Kumarsrinivasan1 aAgarkar, Shruti, A.1 aOgale, Satishchandra, B.1 aGopinath, Chinnakonda, S.  uhttps://library.ncl.res.in/content/toward-quantitative-correlation-between-microstructure-and-dssc-efficiency-case-study-tio2-001403nas a2200169   4500008004100000022001400041245007600055210006900131260011000200300001400310490000600324520072300330100002401053700002001077700002901097856010701126       2013                        eng d  a2050-752600aFerromagnetism in metal oxide systems: interfaces, dopants, and defects0 aFerromagnetism in metal oxide systems interfaces dopants and def  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcDEC  a1545-15570 v13 a<p>Ferromagnetism in metal oxide systems has always attracted scientific attention in view of the intriguing and interesting interplay of spin, charge, orbital and lattice degrees of freedom that such systems display. This trend appears to be continuing with enhanced focus on interface systems, multiferroics, diluted magnetic semiconducting oxides (DMSOs) and nanomaterial magnetism. Newer techniques are being applied to bring out materials issues that are critical to the precise understanding of the origin of magnetism in certain cases. Interest is also beginning to grow in exploring application potential of some such systems. In this article we review the developments in this field by late 2011 and 2012.</p>1 aThakare, Vishal, P.1 aGame, Onkar, S.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/ferromagnetism-metal-oxide-systems-interfaces-dopants-and-defects-001673nas a2200181   4500008004100000022001400041245010700055210006900162260011000231300001400341490000600355520091600361100001701277700002101294700002901315700001901344856012801363       2013                        eng d  a2050-750X00aGlucose oxidase conjugated H2O2 sensitive CdTe QDs: an effective fluorescence tool for glucose sensing0 aGlucose oxidase conjugated H2O2 sensitive CdTe QDs an effective   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcOCT  a6538-65430 v13 a<p>Water-soluble quantum dots (QDs) are extensively used for molecular sensing because of the flexibility they offer in terms of modification of the QDs surface with a variety of functional groups using thiol chemistry and monitoring by fluorescence intensity. We describe a simple assay that allows the photoluminescence (PL) detection of H2O2 and glucose in aqueous samples and demonstrate its applicability by estimating glucose in blood. To enable the glucose detection, we functionalized the 3-mercaptopropanoic acid (MPA) capped CdTe QDs with glucose oxidase (GOx), the enzyme specific to b-D-glucose, using carbodiimide chemistry. The fluorescence of the GOx-functionalized CdTe QDs was quenched on the interaction with glucose. The same photoluminescence quenching was also observed in gel form, when a GOx modified CdTe QDs loaded agarose gel was dipped in H2O2 and glucose solutions, respectively.</p>1 aSingh, Pooja1 aPrabhune, Asmita1 aOgale, Satishchandra, B.1 aGuin, Debanjan  uhttps://library.ncl.res.in/content/glucose-oxidase-conjugated-h2o2-sensitive-cdte-qds-effective-fluorescence-tool-glucose-002658nas a2200313   4500008004100000022001400041245010900055210006900164260007400233300002600307490000700333520156000340653001801900653001501918653001901933653002201952653001801974653002801992100002202020700002102042700002202063700002002085700001802105700002302123700001702146700002202163700002902185856013002214       2013                        eng d  a1388-076400aHollow nanogold/meso-magnetite composite: pulsed laser synthesis, properties, and biosensing application0 aHollow nanogoldmesomagnetite composite pulsed laser synthesis pr  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcNOV  aArticle No. UNSP 20810 v153 a<p>A facile and template-free UV (Excimer) laser photolysis process is demonstrated to transform a Fe-complex into unique hollow Fe3O4 nanosphere morphology with each sphere having nanometric pores and an opening. Depending on the Fe-complex concentration and processing time interesting configurations are seen to evolve. When an identical process is applied to a mixture of Fe-complex and chloroauric acid an enthrallingly decorated Au-Fe3O4 nanostructure evolves, with Au nanoparticles surface-loaded on mesospheric Fe3O4. This room temperature process implemented under normal laboratory conditions is clearly versatile and applicable to heterojunction nanomaterials synthesis in a single-step process. The potential application of these gold-decorated magnetic nanostructures was also investigated for immuno-magnetic capture of E. coli in biosensing and these were found to be sensitive even below 1,000 cfu/ml. The test results demonstrate linear sensing response in the range of 10(3)-10(5) cfu/ml. We also show that these nanostructures can be used for simple electrical conductivity-based biosensing since they show dramatic conductivity change in a simple drop-cast test. A new laser-based approach to the synthesis of unique hollow sphere morphology of magnetite (Fe3O4) without and with Au nanoparticle decoration is presented. The potential application of these gold-decorated magnetic nanostructures was also investigated for immuno-magnetic capture of E. coli in biosensing and these were found to be sensitive even below 1,000 cfu/ml.</p>10aE. coli cells10aFe-complex10aMeso-magnetite10aNanobiotechnology10aNanocomposite10aPulse laser irradiation1 aChaudhari, Nilima1 aWarule, Sambhaji1 aAgrawal, Shailaja1 aThakare, Vishal1 aJouen, Samuel1 aHannoyer, Beatrice1 aKale, Bharat1 aPaknikar, Kishore1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/hollow-nanogoldmeso-magnetite-composite-pulsed-laser-synthesis-properties-and-biosensing-002174nas a2200205   4500008004100000022001400041245014700055210006900202260007100271300001400342490000700356520133100363100002401694700002401718700002601742700002401768700002901792700001801821856012901839       2014                        eng d  a0020-166900aDefects in chemically synthesized and thermally processed ZnO nanorods: implications for active layer properties in dye-sensitized solar cells0 aDefects in chemically synthesized and thermally processed ZnO na  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAPR  a3961-39720 v533 a<p>We have carried out the effect of post annealing temperatures on the performance of solution-grown ZnO rods as photoanodes in dye-sensitized solar cells. Keeping our basic objective of exploring the effect of native defects on the performance of DSSC, we have synthesized ZnO rods having length in the range of 2-5 mu m by a modified sonication-induced precipitation technique. We performed extensive characterization on the samples annealed at various temperatures and confirmed that annealing at 300 degrees C results in ZnO rods with minimum native defects that have been identified as doubly ionized oxygen vacancies. The electron paramagnetic resonance measurements on the samples, on the other hand, confirmed the presence of shallow donors in the low temperature annealed samples. We also carried out electrochemical impedance measurements to understand the transport properties at different interfaces in the solar cell assembly. We could conclude that solution-processed ZnO rods annealed at 300 degrees C are better suited for fabricating DSSC with improved efficiency (1.57%), current density (5.11 mA/cm(2)), and fill factor (45.29%). On the basis of our results, we were able to establish a close connection between the defects in the metal oxide electron transporting nano system and the DSSC performance.</p>1 aDas, Partha, Pratim1 aAgarkar, Shruti, A.1 aMukhopadhyay, Soumita1 aManju, Unnikrishnan1 aOgale, Satishchandra, B.1 aDevi, Sujatha  uhttps://library.ncl.res.in/content/defects-chemically-synthesized-and-thermally-processed-zno-nanorods-implications-active-001834nas a2200205   4500008004100000022001400041245015900055210006900214260011000283300001600393490000600409520093800415100002501353700002001378700002801398700001801426700002901444700002401473856013101497       2014                        eng d  a2040-336400aEnhanced catalytic activity of polyethylenedioxythiophene towards tri-iodide reduction in DSSCs via 1-dimensional alignment using hollow carbon nanofibers0 aEnhanced catalytic activity of polyethylenedioxythiophene toward  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUL  a10332-103390 v63 a<p>Here, we report a highly conducting 1-dimensionally (1-D) aligned polyethylenedioxythiophene (PEDOT) along the inner and outer surfaces of a hollow carbon nanofiber (CNF) and its application as a counter electrode in a dye sensitized solar cell (DSSC). The hybrid material (CP-25) displays a conversion efficiency of 7.16% compared to 7.30% for the standard Pt counter electrode, 4.48% for bulk PEDOT and 5.56% for CNF. The enhanced conversion efficiency of CP-25 is attributed to the accomplishment of high conductivity and surface area of PEDOT through the 1-D alignment compared to its bulk counterpart. Reduced charge transfer resistance and high conductivity of CP-25 could be proven by cyclic voltammetry, impedance analysis and Tafel experiments. Further, through a long-term stability test involving efficiency profiling for 20 days, it is observed that CP-25 possesses excellent durability compared to the bulk PEDOT.</p>1 aAnothumakkool, Bihag1 aGame, Onkar, S.1 aBhange, Siddheshwar, N.1 aKumari, Tanya1 aOgale, Satishchandra, B.1 aKurungot, Sreekumar  uhttps://library.ncl.res.in/content/enhanced-catalytic-activity-polyethylenedioxythiophene-towards-tri-iodide-reduction-dsscs-001445nas a2200217   4500008004100000022001400041245013000055210006900185260011000254300001400364490000600378520054900384100002000933700002600953700002100979700002401000700002301024700002401047700002901071856012701100       2014                        eng d  a2046-206900aNickel cobalt sulfide nanoneedle array as an effective alternative to pt as a counter electrode in dye sensitized solar cells0 aNickel cobalt sulfide nanoneedle array as an effective alternati  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcNOV  a8289-82940 v43 a<p>Self supported nickel cobalt sulfide (NCS) nanoneedles are directly formed on FTO glass substrates by sulphurization of nickel cobalt oxide nanoneedles (grown by a hydrothermal method) in the presence of a hydrogen sulfide and argon gas mixture. These NCS nanoneedles when used as a counter electrode for dye sensitized solar cells (DSSCs) show efficient catalytic activity towards the I-/I-3(-) redox couple, and lead to an impressive efficiency of 6.9%, compared with 7.7% obtained with a Pt electrode in similarly constructed devices.</p>1 aBanerjee, Abhik1 aUpadhyay, Kush, Kumar1 aBhatnagar, Sumit1 aTathavadekar, Mukta1 aBansode, Umesh, P.1 aAgarkar, Shruti, A.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/nickel-cobalt-sulfide-nanoneedle-array-effective-alternative-pt-counter-electrode-dye-002168nas a2200205   4500008004100000022001400041245012100055210006900176260007100245300001600316490000800332520136900340100001701709700001601726700002001742700002201762700002901784700001801813856013101831       2014                        eng d  a1932-744700aOff-stoichiometric nickel cobaltite nanoparticles: thermal stability, magnetization, and neutron diffraction studies0 aOffstoichiometric nickel cobaltite nanoparticles thermal stabili  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUL  a16246-162540 v1183 a<p>In the present investigation, we report a detailed examination of the effect of off-stoichiometry introduced in NiCo2O4 by adding excess cobalt. Thus, we compare and analyze the structural and magnetic properties of the Ni075Co2.25O4 and NiCo2O4 cubic systems. A low temperature combustion method was utilized to synthesize stoichiometric (NiCo2O4) and off-stoichiometric (Ni0.75Co2.25O4) nanoparticles on a large scale. The X-ray diffraction pattern for the sample annealed at high temperature (773 K) shows the presence of a much less intense NiO phase (similar to 2-5%) in Ni0.75Co2.25O4 as compared to that in the case of NiCo2O4 sample (similar to 15-20%). The Ni 2p and Co 2p XPS spectra reveal the coexistence of Ni2+, Ni3+, Co2+, and Co3+ species on the surface of both the NiCo2O4 and Ni0.75Co2.23O4 samples in differing proportions. In addition to the basic magnetic characterizations using PPMS, these were also analyzed by neutron diffraction. The off-stoichiometric Ni0.75Co2.25O4 sample shows an interesting magnetic phase conversion from frustrated dipolar system to an enhanced magnetic ordering upon annealing. Local moments on the lattice sites of NiCo2O4 and Ni0.75Co2.25O4 samples are further compared by neutron diffraction confirming stronger ordered moments and enhanced structural and thermal stability for the Ni0.75Co2.25O4 sample.</p>1 aVerma, Seema1 aKumar, Amit1 aPravarthana, D.1 aDeshpande, Aparna1 aOgale, Satishchandra, B.1 aYusuf, S., M.  uhttps://library.ncl.res.in/content/stoichiometric-nickel-cobaltite-nanoparticles-thermal-stability-magnetization-and-neutron-002217nas a2200277   4500008004100000022001400041245009700055210006900152260007100221300001600292490000600308520122000314653001901534653000901553653003201562653002801594653001401622100002401636700002301660700002301683700002301706700002801729700002301757700002901780856013001809       2014                        eng d  a1944-824400aPulsed laser-deposited MoS2 thin films on W and Si: field emission and photoresponse studies0 aPulsed laserdeposited MoS2 thin films on W and Si field emission  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcSEP  a15881-158880 v63 a<p>We report field electron emission investigations on pulsed laser-deposited molybdenum disulfide (MoS2) thin films on W-tip and Si substrates. In both cases, under the chosen growth conditions, the dry process of pulsed laser deposition (PLD) is seen to render a dense nanostructured morphology of MoS2, which is important for local electric field enhancement in field emission application. In the case of the MoS2 film on silicon (Si), the turn-on field required to draw an emission current density of 10 mu A/cm(2) is found to be 2.8 V/mu m. Interestingly, the MoS2 film on a tungsten (W) tip emitter delivers a large emission current density of similar to 30 mA/cm(2) at a relatively lower applied voltage of similar to 3.8 kV. Thus, the PLD-MoS2 can be utilized for various field emission-based applications. We also report our results of photodiode-like behavior in (n- and p- type) Si/PLDMoS2 heterostructures. Finally we show that MoS2 films deposited on flexible kapton substrate show a good photoresponse and recovery. Our investigations thus hold great promise for the development of PLD MoS2 films in application domains such as field emitters and heterostructures for novel nanoelectronic devices.</p>10afield emission10aMoS210aphotodiode heterostructures10apulsed laser deposition10athin film1 aLate, Dattatray, J.1 aShaikh, Parvez, A.1 aKhare, Ruchita, T.1 aKashid, Ranjit, V.1 aChaudhary, Minakshi, V.1 aMore, Mahendra, A.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/pulsed-laser-deposited-mos2-thin-films-w-and-si-field-emission-and-photoresponse-studies-001804nas a2200265   4500008004100000022001400041245013000055210006900185260010600254300001000360490000800370520077000378653001701148653002101165653002701186653001901213100002801232700002401260700002001284700002301304700002401327700002701351700002901378856013101407       2015                        eng d  a0038-092X00aEnhancing efficiency of perovskite solar cell via surface microstructuring: superior grain growth and light harvesting effect0 aEnhancing efficiency of perovskite solar cell via surface micros  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcFEB  a12-190 v1123 a<p>We have introduced a novel approach to enhance the perovskite solar cell efficiency by controlling the grain growth and light harvesting properties of perovskite crystallites. Instead of using a mesoporous TiO2 layer, we have modified the surface microstructuring of the TiO2 film by dispensing nano assembled TiO2 submicron structures (nanobeads, NBs) on TiO2 compact layer. With this new approach solar cell efficiency was improved significantly through an increase in both J(sc) and V-oc. This high efficiency is attributed to crystallite size of the perovskite phase. These also act as light scattering centers giving higher current density and reduced recombination effects giving higher open circuit voltage. (C) 2014 Elsevier Ltd. All rights reserved.</p>10aGrain growth10aLight harvesting10aPerovskite solar cells10aTiO2 nanobeads1 aTathavadekar, Mukta, C.1 aAgarkar, Shruti, A.1 aGame, Onkar, S.1 aBansode, Umesh, P.1 aKulkarni, Sneha, A.1 aMhaisalkar, Subodh, G.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/enhancing-efficiency-perovskite-solar-cell-surface-microstructuring-superior-grain-growth-000800nas a2200193   4500008004100000245016600041210006900207260000800276300001200284490000600296100002200302700002700324700002300351700002000374700002400394700002800418700002900446856013100475       2015                        eng d00aHigh surface area porous carbon for ultracapacitor application by pyrolysis of polystyrene containing pendant carboxylic acid groups prepared via click chemistry0 aHigh surface area porous carbon for ultracapacitor application b  cSEP  a166-1750 v41 aChhatre, Shraddha1 aAravindan, Vanchiappan1 aPuthusseri, Dhanya1 aBanerjee, Abhik1 aMadhavi, Srinivasan1 aWadgaonkar, Prakash, P.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/high-surface-area-porous-carbon-ultracapacitor-application-pyrolysis-polystyrene-containing01743nas a2200181   4500008004100000022001400041245009100055210006900146260011000215300001400325490000700339520099800346100002301344700001901367700002901386700002401415856012201439       2015                        eng d  a1744-683X00aHysteretic DC electrowetting by field-induced nano-structurations on polystyrene films0 aHysteretic DC electrowetting by fieldinduced nanostructurations   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcFEB  a2655-26640 v113 a<p>Electrowetting (EW) offers executive wetting control of conductive liquids on several polymer surfaces. We report a peculiar electrowetting response for aqueous drops on a polystyrene (PS) dielectric surface in the presence of silicone oil. After the first direct current (DC) voltage cycle, the droplet failed to regain Young's angle, yielding contact angle hysteresis, which is close to a value found in ambient air. We conjecture that the hysteretic EW response appears from in situ surface modification using electric field induced water-ion contact with PS surface inducing nano-structuration by electro-hydrodynamic (EHD) instability. Atomic force microscopy confirms the formation of nano-structuration on the electrowetted surface. The effects of molecular weight, applied electric field, water conductivity and pH on nano-structuration are studied. Finally, the EW based nano-structuration on PS surface is used for the enhanced loading of aqueous dyes on hydrophobic surfaces.</p>1 aSawane, Yogesh, B.1 aDatar, Suwarna1 aOgale, Satishchandra, B.1 aBanpurkar, Arun, G.  uhttps://library.ncl.res.in/content/hysteretic-dc-electrowetting-field-induced-nano-structurations-polystyrene-films-001177nas a2200205   4500008004100000022001400041245013000055210006900185260011000254300001400364490000800378520032700386100002000713700002200733700002000755700001800775700001900793700002900812856013000841       2015                        eng d  a0003-265400aStarch (Tapioca) to carbon dots: an efficient green approach to an on-off-on photoluminescence probe for fluoride ion sensing0 aStarch Tapioca to carbon dots an efficient green approach to an   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcFEB  a1837-18410 v1403 a<p>Photoluminescent carbon dots of 4-5 nm size were prepared from starch (Tapioca Sago) through a solution method under mild conditions. The as-prepared carbon dots were used as photoluminescence probes for highly anion selective fluoride ion detection in aqueous solutions. A ready-to-use device is also demonstrated.</p>1 aBasu, Aniruddha1 aSuryawanshi, Anil1 aKumawat, Begraj1 aDandia, Anshu1 aGuin, Debanjan1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/starch-tapioca-carbon-dots-efficient-green-approach-photoluminescence-probe-fluoride-ion-001323nas a2200145   4500008004100000245013200041210006900173260000800242300001400250490000600264520072600270100002100996700002901017856013101046       2016                        eng d00aCH3NH3Pb(BF4)(3) and (C4H9NH3)2Pb(BF4)(4) family of 3D and 2D perovskites without and with iodide and bromide ions substitution0 aCH3NH3PbBF43 and C4H9NH32PbBF44 family of 3D and 2D perovskites   cNOV  a4757-47620 v73 aWe report the synthesis of fully molecular ion (BF4 )-based organicinorganic hybrid perovskite CH3NH3Pb(BF4)(3), which is a wide band gap semiconductor, and the same can be easily tuned toward the visible by the incorporation of bromide or iodide ions in the crystal framework simply by changing lead precursors. We have also successfully transformed the distorted 3D molecular-ion-induced perovskite to 2D (C4H9NH3)(2)Pb(BF4)(4), (C4H9NH3)(2)PbBr(4x)(BF4)(x), and (C4H9NH3)(2)PbI(4x)(BF4)(x) perovskites that exhibit the optical absorption over the UV to visible region. The thin films of molecular-ion-containing 2D perovskites with Br and I anions show blue and green luminescence, respectively, under UV illumination.1 aNagane, Satyawan1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/ch3nh3pbbf43-and-c4h9nh32pbbf44-family-3d-and-2d-perovskites-without-and-iodide-and-bromide02149nas a2200217   4500008004100000245017900041210006900220260000800289300001600297490000600313520130400319100002001623700001801643700001701661700002201678700003001700700001601730700002901746700002901775856012701804       2016                        eng d00aCO2 Laser direct written MOF-based metal-decorated and heteroatom-doped porous graphene for flexible all-solid-state microsupercapacitor with extremely high cycling stability0 aCO2 Laser direct written MOFbased metaldecorated and heteroatomd  cNOV  a31841-318480 v83 aOver the past decade, flexible and wearable microelectronic devices and systems have gained significant importance. Because portable power source is an essential need of such wearable devices, currently there is considerable research emphasis on the development of planar interdigitated micro energy-torage devices by employing diverse precursor materials to obtain functional materials (functional carbon, oxides, etc.) with the desirable set of properties. Herein we report for the first time the use of metal organic framework (MOF) and zeolitic imidazolate framework (ZIF-67) for high-wavelength photothermal laser direct writing of metal-decorated, heteroatom-doped, porous few-layer graphene electrodes for microsupercapacitor application. We argue that the specific attributes of MOF as a precursor and the high-wavelength laser writing approach (which creates extremely high localized and transient temperature (>2500 degrees C) due to strong absorption by lattice vibrations) are together responsible for the peculiar interesting properties of the carbon material thus synthesized, thereby rendering extremely high cycling stability to the corresponding microsupercapacitor device. Our device exhibits near 100% retention after 200 000 cycles as well as stability under 150 degrees bending.1 aBasu, Aniruddha1 aRoy, Kingshuk1 aSharma, Neha1 aNandi, Shyamapada1 aVaidhyanathan, Ramanathan1 aRane, Sunit1 aRode, Chandrashekhar, V.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/co2-laser-direct-written-mof-based-metal-decorated-and-heteroatom-doped-porous-graphene01644nas a2200205   4500008004100000245012900041210006900170260000800239300001000247490000800257520088300265100002401148700002701172700001801199700002201217700001601239700002401255700002901279856013001308       2016                        eng d00aGraphene based nanocomposites for alloy (SnO2), and conversion (Fe3O4) type efficient anodes for Li-ion battery applications0 aGraphene based nanocomposites for alloy SnO2 and conversion Fe3O  cJUN  a88-950 v1303 aTwo types of trigol reduced one pot synthesized graphene (TRG) based nanocomposites (SnO2-TRG, and Fe3O4-TRG) are examined as potential anodes for Lithium ion battery (LIB) applications. The two specific systems represent different electrode reaction mechanisms, namely alloying, and conversion respectively. The high resolution transmission electron microscopy (HR-TEM) analysis confirms the uniform distribution of SnO2 (similar to 2 nm), and Fe3O4 (similar to 8 nm) particulates on ultrathin TRG nanosheets and highlights the importance of surfactant free synthesis. The SnO2-TRG, and Fe3O4-TRG exhibited the maximum reversible capacity of similar to 947, and similar to 1024 mA h g(-1), respectively. The results show that such graphene based composite materials can be effectively used as prospective anodes for LIB applications. (C) 2016 Elsevier Ltd. All rights reserved.1 aMhamane, Dattakumar1 aAravindan, Vanchiappan1 aTaneja, Divya1 aSuryawanshi, Anil1 aGame, Onkar1 aSrinivasan, Madhavi1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/graphene-based-nanocomposites-alloy-sno2-and-conversion-fe3o4-type-efficient-anodes-li-ion02544nas a2200289   4500008004100000022001400041245014300055210006900198260007100267300001200338490000600350520143900356653002201795653003001817653003001847653002301877653003101900653003101931100002501962700002001987700002802007700001502035700002002050700002902070700002402099856013102123       2016                        eng d  a1944-824400aPt- and TCO-free flexible cathode for DSSC from highly conducting and flexible PEDOT paper prepared via in situ interfacial polymerization0 aPt and TCOfree flexible cathode for DSSC from highly conducting   a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJAN  a553-5620 v83 a<p>Here, we report the preparation of a flexible, free-standing, Pt- and TCO-free counter electrode in dye-sensitized solar cell (DSSC)-derived from polyethylenedioxythiophene (PEDOT)-impregnated cellulose paper. The synthetic strategy of making the thin flexible PEDOT paper is simple and scalable, which can be achieved via in situ polymerization all through a roll coating technique. The very low sheet resistance (4 Omega/square) obtained from a film of 40 mu m thick PEDOT paper (PEDOT-p-5) is found to be superior to the conventional fluorine-doped tin oxide (FTO) substrate. The high conductivity (357 S/cm) displayed by PEDOT-p-5 is observed to be stable under ambient conditions as well as flexible and bending conditions. With all of these features in place, we could develop an efficient Pt- and TCO-free flexible counter electrode from PEDOT-p-5 for DSSC applications. The catalytic activity toward the tri-iodide reduction of the flexible electrode is analyzed by adopting various electrochemical methodologies. PEDOT-p-5 is found to display higher exchange current density (7.12 mA/cm(2)) and low charge transfer resistance (4.6 Omega) compared to the benchmark Pt-coated FTO glass (2.40 mA/cm(2) and 9.4 Omega, respectively). Further, a DSSC fabricated using PEDOT-p-5 as the counter electrode displays a comparable efficiency of 6.1% relative to 6.9% delivered by a system based on Pt/FTO as the counter electrode.</p>10acounter electrode10adye-sensitized solar cell10aflexible and thin devices10aimpedance analysis10ainterfacial polymerization10apolyethylenedioxythiophene1 aAnothumakkool, Bihag1 aAgrawal, Ishita1 aBhange, Siddheshwar, N.1 aSoni, Roby1 aGame, Onkar, S.1 aOgale, Satishchandra, B.1 aKurungot, Sreekumar  uhttps://library.ncl.res.in/content/pt-and-tco-free-flexible-cathode-dssc-highly-conducting-and-flexible-pedot-paper-prepared-001751nas a2200169   4500008004100000245005600041210005400097260000800151300001400159490000600173520121200179100002201391700002701413700002401440700002901464856008801493       2016                        eng d00aRed mud and li-ion batteries: a magnetic connection0 aRed mud and liion batteries a magnetic connection  cAUG  a2193-22000 v93 aExceptional Li-ion battery performance is presented with the oxide component of the anode was extracted from red mud by simple magnetic separation and applied directly without any further processing. The extracted material has -Fe2O3 as the major phase with inter-dispersed phases of Ti, Al, and Si oxides. In a half-cell assembly, the phase displayed a reversible capacity (approximate to 697mAhg(-1)) with excellent stability upon cycling. Interestingly, the stability is rendered by the multiphase constitution of the material with the presence of other electrochemically inactive metal oxides, such as Al2O3, SiO2, and Fe2TiO4, which could accommodate the strain and facilitate release during the charge-discharge processes in the electrochemically active maghemite component. We fabricated the full-cell assembly with eco-friendly cathode LiMn2O4 by adjusting the mass loading. Prior to full-cell assembly, an electrochemical pre-lithiation was enforced to overcome the irreversible capacity loss obtained from the anode. The full-cell delivered a capacity of approximate to 100mAhg(-1) (based on cathode loading) with capacity retention of approximate to 61% after 2000cycles under ambient conditions.1 aSuryawanshi, Anil1 aAravindan, Vanchiappan1 aMadhavi, Srinivasan1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/red-mud-and-li-ion-batteries-magnetic-connection01948nas a2200181   4500008004100000245016300041210006900204260000800273300001400281490000600295520122100301100002001522700002101542700001801563700002801581700002901609856012801638       2016                        eng d00a Robust highly flexible all-solid-state micro pseudocapacitor based on ternary oxide CuCo2O4 having ultrathin porous nanowall type morphology blended with CNT0 aRobust highly flexible allsolidstate micro pseudocapacitor based  cOCT  a5159-51640 v13 aIn this work we demonstrate a facile approach to the fabrication of all solid state flexible interdigitated micro pseudocapacitor device using pre-synthesized CuCo2O4 (CCO) ternary metal oxide as the electrode material. The hydrothermally synthesized CCO exhibits a peculiar 3D interconnected aligned porous nanowall type morphology which is highly desirable for storage as well as charge transfer. The device is fabricated using CO2 laser scribing technique and the PVA-H3PO4 gel electrolyte is used as the electrolyte. The as-synthesized CCO as well as its blend with 10 wt.% CNT are examined for the electrochemical performance. CNT blending is shown to reduce the charge transfer resistance dramatically, thereby enhancing the pseudo capacitance. The areal capacitance of 2.29 mF cm(-2) is obtained from the solid state device. Moreover, the CCO-CNT electrode also shows a high stability upto 9000 cycles without a sign of further decay. Importantly, the devices also retain over 65% of their initial capacitance after 1000 large angle (608) bending cycles and 93% of the initial capacitance under 1208 bending condition, thanks to the mechanical flexibility afforded by CNTs without disrupting conducting paths.1 aBasu, Aniruddha1 aBhardwaj, Monika1 aGawli, Yogesh1 aRode, Chandrasekhar, V.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/robust-highly-flexible-all-solid-state-micro-pseudocapacitor-based-ternary-oxide-cuco2o401505nas a2200253   4500008004100000022001400041245010000055210006900155260008100224300001100305490000700316520057200323653001100895653001900906653001500925100002400940700002800964700002400992700002801016700002301044700002501067700002901092856013001121       2016                        eng d  a0022-372700aSynthesis, microstructure, optical and field emission studies of iron vanadium oxide nanosheets0 aSynthesis microstructure optical and field emission studies of i  aTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLANDbIOP PUBLISHING LTDcAPR  a1453010 v493 a<p>We report a single step growth of thin graphene-like, densely packed FeV3O8 (FVO) nanosheets on silicon substrates via facile hydrothermal synthesis. These nanosheets have dimensions of a few microns with thin edges, offering very high aspect ratio. These FVO nanosheets exhibit excellent field emission behaviour with low turn on and threshold voltages of 1.3 V mu m(-1) and 1.7 V mu m(-1), respectively. The corresponding emitter delivers high emission current density of (similar to 1.650 mA cm(-2)) at fairly low applied field (similar to 4.00 V mu m(-1)).</p>10aFeV3O810afield emission10ananosheets1 aBadadhe, Satish, S.1 aSuryawanshi, Sachin, R.1 aNaphade, Rounak, A.1 aChaudhary, Minakshi, V.1 aMore, Mahendra, A.1 aShelke, Manjusha, V.1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/synthesis-microstructure-optical-and-field-emission-studies-iron-vanadium-oxide-nanosheets01415nas a2200193   4500008004100000245008900041210006900130260000800199300001400207490000600221520074600227100001800973700001700991700002101008700002201029700002101051700002901072856012001101       2017                        eng d00aHexaphosphate-derived phosphorus-functionalized carbon for lithium-ion battery anode0 aHexaphosphatederived phosphorusfunctionalized carbon for lithium  cJUL  a5600-56070 v23 a<p>We show that high-temperature annealing of a dried hexaphosphate, namely phytic acid, renders activated (micro-porous) and phosphorus-functionalized graphene like carbon in a one-step process. At high enough temperature few volatile phosphates serve as porogen-forming entities while other groups reactively functionalize the carbon surface. The optimized material has high effective surface area due to the presence of defect states. As an anode material for Li-ion battery, it exhibits a reversible capacity that is double that of the graphite and is stable for 1000 cycles even at a high current of 5 A g(-1). This result is attributed to the concurrent presence of micropores and phosphorus containing groups in the carbon matrix.</p>1 aGawli, Yogesh1 aWahid, Malik1 aFernandez, Rohan1 aKothari, Dushyant1 aShelke, Manjusha1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/hexaphosphate-derived-phosphorus-functionalized-carbon-lithium-ion-battery-anode01788nas a2200193   4500008004100000245017200041210006900213260000800282520098400290100002401274700001701298700002601315700001901341700002701360700002401387700002201411700002901433856013201462       2017                        eng d00aHigh quality hybrid perovskite semiconductor thin films with remarkably enhanced luminescence and defect suppression via quaternary alkyl ammonium salt based treatment0 aHigh quality hybrid perovskite semiconductor thin films with rem  cJUL3 aSignificant enhancement in the luminescence and superior photophysical properties of CH3NH3PbBr3 thin films prepared via simple single step spin coating process involving a novel additive mediated solvent extraction step is reported. This process results in significantly lower disorder in CH3NH3PbBr3 perovskites with Urbach energies reducing from ≈35 to ≈17 meV, which is the lowest reported value to date. The additive mediated process also results in a remarkable improvement in the photoluminescence quantum yields (PLQYs) from 1% to 30%. Coupled with the overall increase in surface roughness, a significant increase in the internal PLQY from 7% to 77% is estimated, indicating the superior quality of the treated thin films. The resultant high quality CH3NH3PbBr3 perovskites with remarkable photophysical properties can be used in realizing highly efficient optoelectronic devices. Highly efficient light emitting diodes using these perovskites are demonstrated here.1 aNaphade, Rounak, A.1 aZhao, Baodan1 aRichter, Johannes, M.1 aBooker, Edward1 aKrishnamurthy, Shrreya1 aFriend, Richard, H.1 aSadhanala, Aditya1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/high-quality-hybrid-perovskite-semiconductor-thin-films-remarkably-enhanced-luminescence-and01702nas a2200145   4500008004100000245011800041210006900159260000800228300002700236490000800263520110700271100001901378700002901397856013001426       2017                        eng d00aOn-axis pulsed laser deposition of hybrid perovskite films for solar cell and broadband photo-sensor applications0 aOnaxis pulsed laser deposition of hybrid perovskite films for so  cAPR  aArticle Number: 1331070 v1213 aHigh quality hybrid perovskite films are grown by the pulsed laser deposition (PLD) process through target stoichiometry and gas ambient control in the commonly used on-axis geometry which is compatible with PLD of other materials such as metal oxides. The use of an off-stoichiometric target and a momentum softening gas mixture of argon and hydrogen (90%:10%) is shown to yield dense films in the on-axis geometry with excellent stoichiometry and optical quality. The band gap can be easily tuned from 1.6 to 2.3 eV with either mixed halide composite target or successive depositions of inter-diffusing MAPbBr(3) and MAPbI(3) layers. A photosensor based on PLD grown MAPbI(3) is shown to render impressive performance over the broad range of wavelengths from 375 to 800 nm at a voltage of 5V bias. A planar heterojunction solar cell based on the dry-processed on-axis PLD grown film exhibits a champion conversion efficiency of 10.9%. A heterostructure comprising in situ pulsed laser deposited Cu2O (p-type) followed by the hybrid perovskite film shows a rectifying characteristic and photoresponse.1 aBansode, Umesh1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/axis-pulsed-laser-deposition-hybrid-perovskite-films-solar-cell-and-broadband-photo-sensor