有机共轭分子溶液的发光特性  

THE LUMINESCENCE CHARACTERISTIC OF ORGANIC CONJUGATED MOLECULES IN DIFFERENT SOLVENTS

作　　者：王燕辛[1] 戴琳[1] 孟继武[1] 郑荣儿[1] 

机构地区：[1]中国海洋大学光学光电子实验室,山东青岛266071

出　　处：《安徽师范大学学报（自然科学版）》2005年第2期153-157,共5页Journal of Anhui Normal University(Natural Science)

基　　金：国家自然科学基金项目(10074012);青岛市科技局科技计划项目(02-2-kj-yj-26);山东省教育厅自筹项目(J02G51)资助.

摘　　要：由于有机发光材料的诸多优点和广泛用途,进一步探究有机共轭分子的发光机理、认识周围介质场与有机共轭分子以及不同有机共轭分子之间的能量传递,以便开拓出适合不同用途的各类新型发光材料成为研究热点.本文通过考察三种具有不同π电子数的有机共轭分子在不同溶液中的光谱特性,观察其激发光谱和发射光谱的变化情况,比较同一分子在不同溶液中的荧光量子产率,并通过对各类有机共轭分子溶液的光谱分析比较,以获得有机共轭分子的发光受溶剂影响以及同一溶液中不同有机共轭分子间发生非辐射共振能量转移的信息.<Abstrcat>To understand the luminescence mechanism of organic conjugated molecules better, three molecules with different number of π electrons has been investigated in this paper. The excited and emission spectra of anthrone derivative, lactoflavin and chlorophyll a in different solvents are taken and the fluorescence yields has been estimated. The results show that the emission spectrum depends on the structure of molecule, and shifts to red with increasing of number of π electrons in the molecule.It is found that the spectra of molecules change in different solvents with the shift up to 39nm.The efficiency ofnon-radiative resonance energy transfer between the molecules has been discussed under the analysis of the spectra taken.The possible development of the work has also been suggested.

关 键 词：有机共轭分子 溶液 发光特性 有机发光材料 荧光量子产率 发光机理 能量传递 光谱特性 研究热点 变化情况 发射光谱 激发光谱 分析比较 能量转移 溶剂影响 电子数 分子间 介质 共振 π 

分 类 号：O621.25[理学—有机化学] O645.164[理学—化学]