Enhanced and balanced efficiency of white bidirectional organic light-emitting diodes

被引：8
|
作者：
Lee, Jonghee [1 ,2 ]
Cho, Hyunsu [3 ]
Koh, Tae-Wook [3 ]
Yun, Changhun [2 ]
Hofmann, Simone [2 ]
Lee, Jae-Hyun [4 ]
Kim, Yong Hyun [2 ]
Luessem, Bjoern [2 ]
Lee, Jeong-Ik [1 ]
Leo, Karl [2 ]
Gather, Malte C. [2 ]
Yoo, Seunghyup [3 ]
机构：
[1] ETRI, OLED Res Ctr, Taejon 305700, South Korea
[2] Tech Univ Dresden, Inst Angew Photophys, D-01062 Dresden, Germany
[3] Korea Adv Inst Sci & Technol KAIST, Dept Elect Engn, Taejon 305701, South Korea
[4] Hanbat Natl Univ, Dept Sch Global Convergence Studies, Taejon 305719, South Korea
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 23期
基金：
新加坡国家研究基金会;
关键词：
PERFORMANCE;
D O I：
10.1364/OE.21.028040
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the characteristics of enhanced and balanced white-light emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs in both top and bottom direction and in reduced distortion of the electroluminescence spectrum. Furthermore, we find that by utilizing MC effects, the overall current efficiency can be improved by 26.2% compared to that of a conventional device. (C) 2013 Optical Society of America
引用
收藏
页码：28040 / 28047
页数：8
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