文献类型：期刊文献

英文题名：Studies on the relationship between structure and properties of new second-order Nonlinear optical hybrid material

作者：Li, XH; Yuan, QL; Wang, DN

机构：[1]E China Univ Sci & Technol, Sch Mat & Engn, Shanghai 200237, Peoples R China

年份：2002

卷号：23

期号：12

起止页码：2292

外文期刊名：CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE

收录：;EI(收录号：2004057995776);WOS:【SCI-EXPANDED(收录号:WOS:000179776400021)】；

语种：英文

外文关键词：hybrid material; second-order nonlinear optic property; organic-inorganic hybrid material; orientation stability; crystallization; micro-structure

摘要：A new type of organic chromophore group/SiO2-TiO2 second-order nonlinear optical (NLO) materials has been obtained by sol-gel process. The research by X-ray energy dispersion spectrum (EDS) and Transmission electronic microscope (TEM) shows that the hybrid sol particles consist of SiO2, TiO2 and the organic chromophore group, and the size of the particles is about 20-80 nm. The second-order nonlinear optical polarizability chi((2)) of the poled hybrid films is 1. 43 X 10(-7) esu according to one dimensional rigid oriented gas model(1DROGM). The poled film exhibits a good orientation stability, and its glass transition temperature can reach 469 K. The crystallization and micro-structure of hybrid films were analyzed by Xray diffraction (XRD) and atom force microscope (AFM), and the mesostructure was discovered in the NLO hybrid films.