Photoinduced energy transfer in blend films of hole and electron transport materials

被引：1
|
作者：
Zhang, Shuping [1 ]
Song, Weisi [1 ]
Wang, Yinghui [1 ]
Peng, Yajing [1 ]
Liu, Yuqiang [1 ]
Yang, Yanqiang [1 ]
机构：
[1] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Dept Phys, Harbin 150001, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2008年 / 254卷 / 20期
关键词：
energy transfer; photoluminescence; PVK; Alq3;
D O I：
10.1016/j.apsusc.2008.04.043
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The photoluminescence properties of the blend films consisting of the hole transport and electron transport materials, PVK and Alq3, are studied by steady-state and time-resolved photoluminescence (PL) spectroscopy. Both the relative intensity and the photoluminescence lifetime are intensively dependent of the weight ratios of PVK and Alq3. The detailed analysis of experiment data provides clear evidence for a Forster energy transfer from excited PVK, as donor, to Alq3, as acceptor, based on nonradiative resonant transfer mechanism, and allows the determination of Forster radius and the concentration dependent energy transfer efficiency. (C) 2008 Elsevier B. V. All rights reserved.
引用
收藏
页码：6662 / 6665
页数：4
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