1-苯胺基萘-8-磺酸盐在各种固体基质中发光特性的研究  

Studies on Photoluminescence Characteristics of 1-Anilinonaphthalene-8-Sulfonate in Solid Matrixes

作　　者：杨仁杰[1] 徐晓轩[1] 尚丽平[2] 许家林[1] 杨延勇[3] 张存洲[1] 

机构地区：[1]南开大学物理科学学院光子学中心,天津市300071 [2]燕山大学电气工程学院,河北省秦皇岛市066004 [3]英国Renishaw公司,南开大学兼职教授天津市300071

出　　处：《光谱实验室》2005年第2期230-234,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：教育部振兴计划资助项目

摘　　要：1-苯胺基萘 - 8-磺酸盐 (ANS)在不同的固体基质中发光特性的研究发现 :(1 ) ANS分子发射峰位置与在甲醇溶液中相比 ,发生明显的蓝移 ,可能是由于约束在固体基质中的荧光分子的运动受到一定的限制而接近单分子发光的行为。与纯粉末 ANS荧光相比 ,发生红移。ANS在极性的滑石基质中 ,发射峰移向更短的波长 ,在非极性的石蜡基质中移向更长的波长 ,反映固体基质微观环境的变化。 (2 ) ANS分子荧光寿命明显缩短 ,主要原因是在固体基质中 ,荧光发射速率常数 kf 增大。 (3) ANS分子相对量子产率明显增大 ,荧光分子运动受限 ,减弱分子之间的相互作用 ,减小了由于碰撞引起的猝灭 ,分子结构刚性增强。该结果对于研究固体基质的物化性质、探讨光化学反应中能量转移现象具有重要意义。The photoluminescence characteristics of 1-anilinonaphthalene-8-sulfonatein (ANS) in solid matrixes were studied.The fluorescence peak of ANS shifted to shorter wavelength in solid matrix compared with that in methanol solution, which is probably single molecular luminescence due to the limit to the motion of ANS molecules in solid environment, while the fluorescence peak of pure ANS powder shifted to longer wavelength due to the intense interaction among ANS molecules. The emission maximum in solid paraffin is the largest red shifted one due to the non-polar environments, while on the polar talcum surface there is a blue shifted one, which shows the solid microcosmic environments effects upon the properties of ANS fluorescence. Fluorescence lifetim is shortened because of the larger fluorescent emission rate in solid substrates. Relative quantum yields obviously increase due to the limit of the ANS molecules motion in solid environment, and the decrease of collision quenching. The results are important to obtain composition and physical properties of solid substrates, and significant to study the phenomenon of energy transfer in photochemical reaction.

关 键 词：固体基质 发光特性 磺酸盐 胺基 萘 苯 光化学反应 甲醇溶液 荧光分子 微观环境 荧光寿命 速率常数 荧光发射 量子产率 分子运动 相互作用 结构刚性 物化性质 能量转移 ANS 单分子 非极性 相比 波长 移向 增大 峰位 猝灭 

分 类 号：O636.1[理学—高分子化学] TQ651[理学—化学]