Enhanced light extraction of organic light-emitting diodes using recessed anodes

被引：15
|
作者：
Hsu, C. M. [1 ]
Zeng, Y. X. [1 ]
Lin, B. T. [1 ]
Lin, W. M. [1 ]
Wu, W. T. [1 ]
机构：
[1] Southern Taiwan Univ Sci & Technol, Dept Electroopt Engn, Tainan 710, Taiwan
来源：
APPLIED SURFACE SCIENCE | 2014年 / 309卷
关键词：
Organic light-emitting diode (OLED); Indium tin oxide (ITO); Light extraction; Recess; QUANTUM-EFFICIENCY; MICROLENS ARRAYS; DEVICES; IMPROVEMENT; SCATTERING; FILMS;
D O I：
10.1016/j.apsusc.2014.04.145
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：
Recessed indium tin oxide films were prepared to serve as anodes for enhancing light extraction efficiency of organic light-emitting diodes (OLEDs). The power efficiency of OLEDs with the proposed films was enhanced by up to 28%. This improvement can be attributed to enhanced light extraction due to the wall effect and the bottom scattering effect of the recesses. The power efficiency increased with recess depth but was limited by the accompanying high electrical resistivity and large optical loss. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：33 / 37
页数：5
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