02117nas a2200253   4500008004100000022001400041245010700055210006900162260006900231300001200300490000800312520124100320653001201561653001801573653002301591653001601614100001801630700001901648700001801667700001601685700001701701700001901718856012601737       2011                        eng d  a0254-058400aSynthesis and characterization of CdS/PVA nanocomposite thin films from a complexing agent free system0 aSynthesis and characterization of CdSPVA nanocomposite thin film  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcDEC  a223-2290 v1313 a<p>CdS/PVA nanocomposite thin films have been deposited on glass substrates by in situ thermolysis of precursors dispersed in polyvinyl alcohol (PVA). The synthetic technique reported in this study is free from complexing agent and hence no need to control the pH of the solution as in the case of conventional CBD. The as-prepared films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), UV-vis spectroscopy, and photoluminescence (PL) spectra. The XRD and SAED results indicated the formation of CdS nanoparticles with hexagonal phase in the PVA matrix. The photoluminescence and UV-vis spectroscopy revealed that CdS/PVA films showed quantum confinement effect. From the shift in optical band gap, particle sizes were calculated using effective mass approximation (EMA) method and it was found to be in agreement with the results obtained from TEM observations. The SEM results indicated that as grown films were homogeneous with no visible pinholes and cracks. The film prepared at 100 degrees C was found to be suitable for application as a window layer in solar cell. (C) 2011 Elsevier B.V. All rights reserved.</p>10aCdS/PVA10aNanocomposite10aOptical properties10aThermolysis1 aSaikia, Dulen1 aSaikia, P., K.1 aGogoi, P., K.1 aDas, M., R.1 aSengupta, P.1 aShelke, M., V.  uhttps://library.ncl.res.in/content/synthesis-and-characterization-cdspva-nanocomposite-thin-films-complexing-agent-free-003415nas a2200289   4500008004100000245009600041210006900137260000800206490000600214520247900220653001402699653003902713653002502752653001602777653002402793653003602817653001202853653002202865653002302887100001402910700001402924700001902938700001402957700001902971700001402990856012103004       2017                        eng d00aNutty carbon: morphology replicating hard carbon from walnut shell for na ion battery anode0 aNutty carbon morphology replicating hard carbon from walnut shel  cJUL0 v23 a<div id="absImg" style="position: relative; margin: 0px; padding: 5px; border: 1px solid rgb(204, 204, 204); border-radius: 5px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; text-align: center; color: rgb(0, 0, 0); font-family: Helvetica, Arial, sans-serif; font-size: 14px;"><img alt="Abstract Image" src="http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/acsodf/2017/acsodf.2017.2.issue-7/acsomega.7b00633/20170713/images/medium/ao-2017-00633k_0006.gif" style="border: 0px; max-width: 100%;"></div><p class="articleBody_abstractText" style="margin: 0px 0px 1.5em; line-height: 1.6em; padding: 0pt; width: 610px; word-wrap: break-word; color: rgb(0, 0, 0); font-family: Helvetica, Arial, sans-serif; font-size: 14px;">Efficient Na ion intercalation/deintercalation in the semigraphitic lattice of a hard carbon derived from the walnut shell is demonstrated. High-temperature (1000 °C) pyrolysis of walnut shells under an inert atmosphere yields a hard carbon with a low surface area (59 m<span style="vertical-align: 0.4em; font-size: 0.8em; line-height: 0.8em;">2</span>&nbsp;g<span style="vertical-align: 0.4em; font-size: 0.8em; line-height: 0.8em;">–1</span>) and a large interplanar&nbsp;<i>c</i>&nbsp;axis separation of 0.39–0.36 nm as compared to 0.32 nm for graphite, suitable for Na ion intercalation/deintercalation. A stable reversible capacity of 257 mAh g<span style="vertical-align: 0.4em; font-size: 0.8em; line-height: 0.8em;">–1</span>&nbsp;is observed at a current density of 50 mA g<span style="vertical-align: 0.4em; font-size: 0.8em; line-height: 0.8em;">–1</span>&nbsp;for such nutshell-derived carbon (NDC) with an impressive rate performance. No loss of electrochemical performance is observed for high current cycling (100 mA g<span style="vertical-align: 0.4em; font-size: 0.8em; line-height: 0.8em;">–1</span>&nbsp;→ 2 A g<span style="vertical-align: 0.4em; font-size: 0.8em; line-height: 0.8em;">–1</span>&nbsp;→ 100 mA g<span style="vertical-align: 0.4em; font-size: 0.8em; line-height: 0.8em;">–1</span>). Additionally, the NDC shows remarkably stable electrochemical performance up to 300 charge–discharge cycles at 100 mA g<span style="vertical-align: 0.4em; font-size: 0.8em; line-height: 0.8em;">–1</span>&nbsp;with a minimal drop in capacity.</p>10aBatteries10aBiological and Medicinal chemistry10aBiological materials10adiffraction10aElectric Properties10aElectrode-electrolyte interface10aspectra10aSurface structure10aThermal properties1 aWahid, M.1 aGawli, Y.1 aPuthusseri, D.1 aKumar, A.1 aShelke, M., V.1 aOgale, S.  uhttps://library.ncl.res.in/content/nutty-carbon-morphology-replicating-hard-carbon-walnut-shell-na-ion-battery-anode01526nas a2200181   4500008004100000245005200041210005100093260000800144300002800152490000800180520095500188100002801143700002401171700002301195700002401218700001901242856008301261       2017                        eng d00aOptical antenna effect on SiNWs/CuS photodiodes0 aOptical antenna effect on SiNWsCuS photodiodes  cMAY  aArticle Number: 16006350 v2143 aOne-dimensional architectures between silicon nanowires (SiNWs) and CuS were fabricated by radio-frequency (RF) magnetron sputtering and analyzed for solid-state photodetector application. Inspired by the subwavelength optical concentration by the surface plasmons on metal nanostructures at the nanoscale, we investigated the effect of gold nanorods (AuNRs) on the optical absorption and photodetection properties of the heterojunction photodiode. AuNRs acting as an optical trapping antenna enhances the light absorption, consequently boosting the photocurrent from the device. A maximum photoresponsivity of 0.36 mA W-1 was achieved under 665 nm excitation wavelength independent of the bias, a value similar to 13 times higher than for the heterojunction photodiode without AuNRs. Such plasmonic sensitization can be useful for improving the sensitivity of visible as well as IR photodetectors. (C) 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim1 aYenchalwar, Sandeep, G.1 aRondiya, Sachin, R.1 aShinde, Pravin, N.1 aJadkar, Sandesh, R.1 aShelke, M., V.  uhttps://library.ncl.res.in/content/optical-antenna-effect-sinwscus-photodiodes