Tandem organic light-emitting diodes with an effective charge-generation connection structure

被引：16
作者：
Li, Linsen [1 ]
Guan, Min [1 ]
Cao, Guohua [2 ]
Li, Yiyang [2 ]
Zeng, Yiping [2 ]
机构：
[1] Chinese Acad Sci, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
[2] Chinese Acad Sci, Ctr Mat Sci, Inst Semicond, Beijing 100083, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2010年 / 150卷 / 35-36期
基金：
中国国家自然科学基金;
关键词：
Organic light-emitting diodes; Tandem; Charge generation; INJECTION LAYER; DEVICES; EFFICIENCY;
D O I：
10.1016/j.ssc.2010.06.026
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The tandem organic light-emitting diodes (OLEDs) with an effective charge-generation connection structure of Mg-doped tris(8-hydroxyquinoline) aluminum (Alq(3))/Molybdenum oxide (MoO3)-doped 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA) were presented. At a current density of 50 mA/cm(2), the current efficiency of the tandem OLED with two standard NPB/Alq(3) emitting units is 4.2 cd/A, which is 1.7 times greater than that of the single EL device. The tandem OLED with the similar connection structure of Mg-doped PTCDA/MoO3-doped PTCDA was also fabricated and the influences of the different connection units on the current efficiency of the tandem OLED were discussed as well. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1683 / 1685
页数：3
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