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- W2361795883 abstract "Sol|gel technology,because of the use of homogeneous liquid solutions and the ability to form gels at room temperature,provides an attractive route to the preparation of a three|dimensional inorganic network,especially films.A three|dimensional network of organic/inorganic hybrid nonlinear optical (NLO) materials can be prepared by doping optically active organics into sol|gel liquid solution or bonding organic chromophores with inorganics at the temperature below decomposition temperature ( T d) of organic chromophores without risking the degradation of organic components.The properties of hybrid NLO materials can be tailored by changing the starting chromophores.The three|dimensional networks can restrict the dipole alignment relaxation of NLO chromphores,so the resulting NLO materials have high NLO susceptibility,low optical loss,high glass transition temperatures and good high|temperature stability. In this report,a new kind of bonded organic/inorganic hybrid NLO materials (DO3ASD) containing 4|Nitro|4′|amino azobenzene was synthesized through sol|gel process by using γ |glycidoxypropyl trimethoxysilane (KH560) as intermediates.The preparation process and quality of DO3ASD were studied and characterized by FTIR, 1H|NMR,UV|VIS,TGA,DSC,SEM and SHG measurements.The results show that this bonded polymer film has a high NLO coefficient ( d 33 ) of 5 79×10 -7 esu,and exhibit good SHG stability,the d 33 values can maintain about 93 5% of its initial value at room temperature for 90 days,and can maintain about 60% at 100℃ for 300min.These facts demonstrated that the chemical bonding of the chromophores to the SiO 2 networks can effectively reduce the dipole alignment relaxation of chromophores,thus lead to a better orientational stability." @default.
- W2361795883 created "2016-06-24" @default.
- W2361795883 creator A5030487779 @default.
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- W2361795883 date "2000-01-01" @default.
- W2361795883 modified "2023-09-23" @default.
- W2361795883 title "SYNTHESIS OF NEW ORGANIC/INORGANIC HYBRID MATERIAL CONTAINING 4-NITRO-4′-AMINO AZOBENZENE AND ITS SECOND-ORDER NONLINEAR OPTICAL PROPERTIES" @default.
- W2361795883 hasPublicationYear "2000" @default.
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