Fe∶SrTiO_3涂层的光致变色效应  

PHOTOCHROMIC EFFECT OF Fe∶SrTiO 3 COATING

作　　者：黄民辉[1] 夏继余[1] 胡仲寅[1] 黄静琪[1] 丁传贤[1] 

机构地区：[1]中国科学院上海硅酸盐研究所

出　　处：《硅酸盐学报》1997年第2期198-203,共6页Journal of The Chinese Ceramic Society

摘　　要：制备了一种光致变色Ｆｅ∶ＳｒＴｉＯ３涂层。室温下，该光致变色过程是可逆的，涂层受到紫外或太阳光照时，颜色能很快地发生变化，移去光源，涂层又逐渐回复到原来的颜色。反映在光谱上，紫外光照后的涂层在４３０ｎｍ，５８０ｎｍ处出现两个吸收峰。在实验基础上，结合文献报道，对涂层的变色和漂白过程作了较为详细的讨论。另外还阐述了涂层紫外光照前后的颜色特征。A kind of photochromic material,Fe∶SrTiO 3 coating,was prepared.The photochromic process is reversible:the coating changes its color very quickly when exposed to sunlight or UV light,and returns to its original state fairly slowly in the dark at room temperature.The photochromic properties of the coating were studied using optical technique.It is found that two optical absorption band peaks at 430nm and 580nm respectively appear in the photochromic spectra after the coating is irradiated with UV light.A detailed discussion about the coloring and bleaching process of the coating is presented on the basis of experiment and references.In addition,the color characteristics of the coating before and after UV irradiation are also given.

关 键 词：光致变色 掺铁钛酸锶 涂层 光化学 

分 类 号：O644.19[理学—物理化学]