01732nas a2200241   4500008004100000022001400041245010800055210006900163260007300232300001400305490000800319520084300327653002801170653002301198653001501221653001501236100002701251700002201278700002401300700001701324700002201341856012701363       2011                        eng d  a0169-433200aLow thermal emissive surface properties of ZnO/polyimide composites prepared by pulsed laser deposition0 aLow thermal emissive surface properties of ZnOpolyimide composit  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a1824-18280 v2573 a<p>We report the low thermal-emissive surface properties of composites of ZnO-polyimide. The composites were synthesized by depositing ZnO on polyimide surface by pulsed laser deposition technique. ZnO target was ablated at different incident energy densities and the substrate (polyimide) was held at elevated temperature. This facilitated the c-axis oriented growth of ZnO, which was inferred from the X-ray diffraction analysis. The composites consisted of multilayers having different electrical resistivities. The values of which are also estimated from Hagen-Rubens relation. The reduced infrared emissivities of the composite films, as compared to polyimide, were correlated to the increased carrier concentration and reduced surface resistivity estimated from the Hall measurements. (C) 2010 Elsevier B.V. All rights reserved.</p>10apulsed laser deposition10aThermal emissivity10aThin films10aZinc oxide1 aBabrekar, Harshada, A.1 aJejurikar, S., M.1 aJog, Jyoti, Prakash1 aAdhi, K., P.1 aBhoraskar, S., V.  uhttps://library.ncl.res.in/content/low-thermal-emissive-surface-properties-znopolyimide-composites-prepared-pulsed-laser-002225nas a2200301   4500008004100000022001400041245013400055210006900189260006900258300001200327490000800339520114800347653003001495653001901525653001901544653002301563653003501586653003801621653001701659100001501676700001801691700001601709700001701725700001401742700002401756700002201780856012101802       2016                        eng d  a0254-058400aSynthesis and self-assembly of dumbbell shaped ZnO sub-micron structures using low temperature chemical bath deposition technique0 aSynthesis and selfassembly of dumbbell shaped ZnO submicron stru  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcFEB  a152-1570 v1693 a<p>We report well dispersed horizontal growth of ZnO sub-micron structures using simplest technique ever known i.e. chemical bath deposition (CBD). A set of samples were prepared under two different cases A) dumbbell shaped ZnO grown in CBD bath and B) tubular ZnO structures evolved from dumbbell shaped structures by dissolution mechanism. Single phase wurtzite ZnO formation is confirmed using X-ray diffraction (XRD) technique in both cases. From the morphological investigations performed using scanning electron microscopy (SEM), sample prepared under case A indicate formation of hex bit tool (HBT) shaped ZnO crystals, which observed to self-organize to form dumbbell structures. Further these microstructures are then converted into tubular structures as a fragment of post CBD process. The possible mechanism responsible for the self-assembly of HBT units to form dumbbell structures is discussed. Observed free excitonic peak located at 370 nm in photoluminescence (PL) spectra recorded at 18 K indicate that the micro/nanostructures synthesized using CBD are of high optical quality. (C) 2015 Elsevier B.V. All rights reserved.</p>10aElectron microscopy (STEM10aMicrostructure10aNanostructures10aOptical properties10aPhotoluminescence spectroscopy10aRaman spectroscopy and scattering10aTEM and SEM)1 aBorade, P.1 aJoshi, K., U.1 aGokarna, A.1 aLerondel, G.1 aWalke, P.1 aLate, Dattatray, J.1 aJejurikar, S., M.  uhttps://library.ncl.res.in/content/synthesis-and-self-assembly-dumbbell-shaped-zno-sub-micron-structures-using-low-0