钛凝胶的光致变色和电致变色特性  

Characterization of the Photochromic and Electrochromic Titania Gel

作　　者：管自生[1] 马颖[1] 曹亚安[1] 纪学海[1] 姚建年[1] 

机构地区：[1]中国科学院化学研究所分子科学中心,北京100080

出　　处：《物理化学学报》2000年第1期5-8,共4页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金

摘　　要：过渡金属氧化物光致变色［１，２］和电致变色［３－７］材料在图象显示、信息存储以及做为调节光线强弱的“灵巧窗”等方面有着潜在的应用．国内外广大的科研工作者，在新型光电变色材料的寻找和光电变色机理等方面开展了较广泛而深入的研究．目前普遍认为变色机理为双注...Titania gel is very sensitive to change of color to blue-purple by UV irradiation and to brown color under extra electric field polarzation. The UV absorption spectra of the Photochromic (PC) and electrochromic(EC) titania gel are different to that of the nanocrystalline TiO_2 which changes to blue color by UV irradiation or under extra electric field polarization. The steady-state ESR measurements at room temperature indicate that ESR signals of Ti3+ appeared in PC and EC titania gel with the g values corresponding to 1. 9505 and 1. 9512, respectively.

关 键 词：钛凝胶 光致变色 电致变色 光电变色材料 

分 类 号：O648.17[理学—物理化学]