01779nas a2200253   4500008004100000022001400041245013200055210006900187260007300256300001000329490000800339520080200347653002301149653002901172653003301201653002101234653001901255653002701274100002301301700002801324700001501352700003001367856012801397       2009                        eng d  a0927-775700aOptical limiting properties of hydrophobic poly(etherimide) membranes embedded with isolated and aggregated gold nanostructures0 aOptical limiting properties of hydrophobic polyetherimide membra  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcDEC  a79-830 v3523 a<p>A simple method to incorporate spherical or aggregated nanostructures of gold into hydrophobic poly(etherimide) membranes is demonstrated and their comparative nonlinear optical properties are investigated. When excited at 532 nm using laser pulses of 7 ns duration, a reduced transmission behaviour in both the cases, viz., polymers embedded with isolated nanoparticles and their aggregates is observed. This fits to a three-photon type nonlinear absorption process and is attributed to excited state absorption occurring in the nanostructures. Interestingly, the nonlinearity is more prominent in the aggregated nanostructures compared to the spherical nanostructures. These materials are potential candidates for optical limiting applications. (C) 2009 Elsevier B.V. All rights reserved.</p>10agold nanoparticles10aNanoparticle aggregation10aNonlinear optical properties10aOptical limiting10aPhase transfer10aPolymer nanocomposites1 aD'Britto, Virginia1 aSandeep, C., S. Suchand1 aPhilip, R.1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/optical-limiting-properties-hydrophobic-polyetherimide-membranes-embedded-isolated-and-001022nas a2200169   4500008004100000245009000041210006900131260002900200520038400229100001800613700001200631700002100643700001400664700001900678700003000697856012500727       2017                        eng d00aOFET based H2S gas sensing among reducing and mining gases using green synthesis SnO20 aOFET based H2S gas sensing among reducing and mining gases using  aMumbai, IndiabIEEEcJAN3 aIn this paper we present detection of H2S gas using an organic field effect transistor (OFET) based sensor. A low-cost green synthesis process for SnO2 nanoparticles and bi-layer approach for device fabrication have been adopted to come up with the sensor. With the help of multiparameteric analysis, selectivity towards H2S gas was proved among other reducing and mining gases. 1 aSurya, S., G.1 aRoy, S.1 aGanne, B., S. P.1 aPasam, D.1 aSastry, A., B.1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/ofet-based-h2s-gas-sensing-among-reducing-and-mining-gases-using-green-synthesis-sno2