01751nas a2200205   4500008004100000022001400041245006800055210006600123260012100189300001200310490000700322520099900329653001501328653001601343653002001359653002201379100002001401700002401421856010001445       2012                        eng d  a1229-919700aElectrospinning of PHBV/ZnO membranes: structure and properties0 aElectrospinning of PHBVZnO membranes structure and properties  aKOREA SCIENCE TECHNOLOGY CTR \#501 635-4 YEOGSAM-DONG, KANGNAM-GU, SEOUL 135-703, SOUTH KOREAbKOREAN FIBER SOCcJUL  a692-6970 v133 a<p>Polyhydroxy butyrate-co-valerate (PHBV) - Zinc oxide (ZnO) nano composite fibers were prepared using electrospinning. The structural and optical properties were studied using Fourier transform infrared spectroscopy (FT-ER), X-ray diffraction (XRD) and photoluminescence study (PL). The morphology observed with scanning electron microscope (SEM) revealed no significant changes in the nano composite fibers as compared to bare polymer. The low concentration of ZnO nanoparticles resulted in an increase in overall crystallinity of the polymer matrix which was confirmed from FT-IR and XRD results. The photoluminescence (PL) study indicated the quenching of visible emission in the composite fibers. The ratio of UV to visible emission (I-uv/I-vis) intensity was found to be 12.8 times enhanced in the composite fibers compared to bare ZnO nanoparticles. The nanofibrous mats are self supported and hence offer potential applications in optoelectronic devices and the biomedical imaging.</p>10aBiomarkers10aBiopolymers10aelectrospinning10aZnO nanoparticles1 aNaphade, Rounak1 aJog, Jyoti, Prakash  uhttps://library.ncl.res.in/content/electrospinning-phbvzno-membranes-structure-and-properties-001550nas a2200193   4500008004100000022001400041245011200055210006900167260007100236300001400307490000800321520078500329100002301114700002001137700002001157700002401177700002501201856013001226       2015                        eng d  a1932-744700aHybrid perovskite films by a new variant of pulsed excimer laser deposition: a room-temperature dry process0 aHybrid perovskite films by a new variant of pulsed excimer laser  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAPR  a9177-91850 v1193 a<p>A new variant of the classic pulsed laser deposition (PLD) process is introduced as a room-temperature dry process for the growth and stoichiometry control of hybrid perovskite films through the use of nonstoichiometric single target ablation and off-axis growth. Mixed halide hybrid perovskite films nominally represented by CH(3)NH(3)PbI(3-x)A(x) (A = Cl or F) are also grown and are shown to reveal interesting trends in the optical properties and photoresponse. Growth of good quality lead-free CH3NH3SnI3 films is also demonstrated, and the corresponding optical properties are presented. Finally, perovskite solar cells fabricated at room temperature (which makes the process adaptable to flexible substrates) are shown to yield a conversion efficiency of about 7.7%.</p>1 aBansode, Umesh, P.1 aNaphade, Rounak1 aGame, Onkar, S.1 aAgarkar, Shruti, A.1 aOgale, Satishchandra  uhttps://library.ncl.res.in/content/hybrid-perovskite-films-new-variant-pulsed-excimer-laser-deposition-room-temperature-dry-001849nas a2200313   4500008004100000022001400041245012200055210006900177260007100246300001200317490000600329520075600335653002901091653003501120653001901155653001701174653001501191653001501206653001701221100002001238700002101258700001901279700002101298700002201319700001901341700002301360700002501383856012701408       2016                        eng d  a1944-824400aHybrid perovskite quantum nanostructures synthesized by electrospray antisolvent-solvent extraction and intercalation0 aHybrid perovskite quantum nanostructures synthesized by electros  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJAN  a854-8610 v83 a<p>Perovskites based on organometal lead halides have attracted great deal of scientific attention recently in the context of solar cells and optoelectronic devices due to their unique and tunable electronic and optical properties. Herein, we show that the use of electrospray technique in conjunction with the antisolventsolvent extraction leads to novel low-dimensional quantum structures (especially 2-D nanosheets) of CH3NH3PbI3- and CH3NH3PbBr3-based layered perovskites with unusual luminescence properties. We also show that the optical bandgaps and emission characteristics of these colloidal nanomaterials can be tuned over a broad range of visible spectral region by compositional tailoring of mixed-halide (I- and Br-based) perovskites.</p>10a2D nanostructure systems10aantisolvent-solvent extraction10abandgap tuning10aelectrospray10ananosheets10aperovskite10aquantum dots1 aNaphade, Rounak1 aNagane, Satyawan1 aShanker, Shiva1 aFernandes, Rohan1 aKothari, Dushyant1 aZhou, Yuanyuan1 aPadture, Nitin, P.1 aOgale, Satishchandra  uhttps://library.ncl.res.in/content/hybrid-perovskite-quantum-nanostructures-synthesized-electrospray-antisolvent-solvent-001468nas a2200193   4500008004100000245010200041210006900143260000800212300001400220490000700234520077400241100002001015700002101035700001901056700002401075700002201099700002501121856012801146       2017                        eng d00aSynthetic manipulation of hybrid perovskite systems in search of new and enhanced functionalities0 aSynthetic manipulation of hybrid perovskite systems in search of  cOCT  a3722-37390 v103 aOver the past few years the organic-inorganic hybrid perovskite systems have emerged as a promising class of materials for photovoltaic and electroluminescent thin-film device applications, in view of their unique set of tunable optoelectronic properties. Importantly, these materials can be easily solution-processed at low temperatures and as such are amenable to facile molecular engineering. Thus, a variety of low-dimensional forms and quantum structures of these materials can be obtained through strategic synthetic manipulations through small molecule incorporation or molecular ion doping. In this Minireview, we specifically focus on these approaches and outline the possibilities of utilizing these for enhanced functionalities and newer application domains.1 aNaphade, Rounak1 aNagane, Satyawan1 aBansode, Umesh1 aTathavadekar, Mukta1 aSadhanala, Aditya1 aOgale, Satishchandra  uhttps://library.ncl.res.in/content/synthetic-manipulation-hybrid-perovskite-systems-search-new-and-enhanced-functionalities