摘要
有机光学活性物质在ＳｉＯ２凝胶玻璃中处于细颈广体状孔或化学惰性封闭孔内，由于孔的保护作用（笼效应），其热稳定性提高１００～３００℃。复合凝胶玻璃经１００℃处理后，由于吸附水的大量逸出，限制并减少了染料分子及其与环境之间的相互作用，降低了非辐射跃迁几率，染料的荧光效率成倍增加。
Doped in silica gel glasses,the organic dye molecules are isolated and adsorbed in the tiny pores of the inorganic network steadily.Owing to the shield of silica network,the thermal stability of organic dyes increases by 100～300℃.During heat-treatment to 100℃,most absorbed water molecules in silica gel glasses are removed,and the fluorescence intensity of organic dyes increases remarkably as a result of decrease in the probabilities of radiationless transitions.
出处
《硅酸盐通报》
CAS
CSCD
1999年第1期19-21,30,共4页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金
关键词
凝胶玻璃
热稳定性
荧光
二氧化硅
有机光学物质
silica gel glass,organic photoactive species,thermal stability,fluorescence
