Time-resolved luminescence quenching in thin films of perylene-tetracarboxylic-dianhydride

被引：13
|
作者：
Schüppel, R [1 ]
Dienel, T [1 ]
Leo, K [1 ]
Hoffmann, M [1 ]
机构：
[1] Tech Univ Dresden, Inst Angew Photophys, D-01062 Dresden, Germany
来源：
JOURNAL OF LUMINESCENCE | 2004年 / 110卷 / 04期
关键词：
PTCDA (perylene-3,4,9,10-tetracarboxylic-dianhydride); organic thin films; time-resolved luminescence; luminescence quenching; exciton diffusion;
D O I：
10.1016/j.jlumin.2004.08.026
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present luminescence quenching experiments and determine the exciton diffusion length in polycrystalline thin films of PTCDA (perylene-3,4,9,10-tetracarboxylic-dianhydride). From an analysis of time-resolved experiments, we can distinguish between exciton transport during an ultra-fast initial relaxation phase and transport in the long-living emitting states. The temperature dependence of the exciton diffusion constant in the emitting states indicates thermally activated hopping. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：309 / 314
页数：6
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