Effect of energy transfer on electroluminescent performance in blend-layer organic light-emitting devices

被引:3
作者
Zhang, Shuping [1 ]
Lue, Zhe [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
基金
中国国家自然科学基金;
关键词
Alq(3); MEH-PPV; organic light-emitting diodes; forster energy transfer;
D O I
10.1016/j.jlumin.2008.02.005
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The photo- and electroluminescence properties of the blend films of Alq(3) and MEH-PPV with various weight ratios are studied. The Forster energy transfer with a relatively large Forster radius (46.9 angstrom) and governs the device luminescent performance, although there are some effect of phase separation. It is found that the energy transfer process governs not only the PL properties in the blend films but also the EL performance of the blend-layer OLEDs. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:1523 / 1527
页数:5
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