Effect of matrix compound on the dimerization of sulphorhodamine B in Langmuir-Blodgett films

被引：8
|
作者：
Vuorimaa, E [1 ]
Belovolova, LV [1 ]
Lemmetyinen, H [1 ]
机构：
[1] INST GEN PHYS,MOSCOW 117942,RUSSIA
来源：
JOURNAL OF LUMINESCENCE | 1997年 / 71卷 / 01期
基金：
芬兰科学院;
关键词：
Langmuir-Blodgett films; dimerization; time-resolved fluorescence; rhodamine dyes;
D O I：
10.1016/S0022-2313(96)00119-6
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Time-resolved fluorescence decay curves of N-(Lissamine rhodamine B sulfonyl)dipalmitoyl-phosphatidyl choline (SR) in Langmuir-Blodgett (LB) monolayers have been measured in dipalmitoylphosphatidic acid (DPPA), dipalmitoylphosphatidylcholine (DPPC) and stearylamine (STAM) matrices. The fluorescence of dye monomers is efficiently quenched by energy transfer to dimers. The existence of two kinds of dimers was observed. Sandwich-type J dimers were found in DPPC matrix, whereas H dimers with oblique geometry seem to prevail in DPPA and STAM matrices.
引用
收藏
页码：57 / 63
页数：7
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