Lifetime improvement of green phosphorescent organic light-emitting diodes by charge confining device structure

被引：31
作者：
Kim, Sung Hyun
Jang, Jyongsik
Lee, Jun Yeob [1 ]
机构：
[1] Dankook Univ, Dept Polymer Sci & Engn, Seoul 140714, South Korea
[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151742, South Korea
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 20期
关键词：
D O I：
10.1063/1.2740587
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Lifetime improvement of green phosphorescent organic light-emitting diodes by charge confinement inside an emitting layer was investigated. Excitons were confined within the emitting layer by using a charge confining structure with a high doping concentration at the center of the emitting layer. The lifetime of green devices could be improved by more than five times by confining the excitons at the center of the emitting layer. (C) 2007 American Institute of Physics.
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页数：3
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