Angle-stable RGBW top-emitting organic light-emitting devices with Ag/Ge/Ag cathode

被引:10
作者
Liu, Shihao [1 ]
Liu, Jian [1 ]
Wen, Xuemei [1 ]
Liu, Yang [1 ]
Chen, Zhaoying [1 ]
Yin, Yongming [1 ]
Zhang, Letian [1 ]
Xie, Wenfa [1 ]
机构
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
基金
中国国家自然科学基金;
关键词
DIODES; COLOR; EFFICIENCY; DISPLAYS; EMISSION; CONTRAST;
D O I
10.1364/OL.38.001742
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Ag/Ge/Ag (AGA) is investigated as a transparent cathode for top-emitting organic light-emitting devices (TEOLEDs). TEOLEDs of different colors with excellent performances can be gained by simply adopting a corresponding emitting layer, without changing the thickness of the device and cathode. Especially, the blue and white TEOLEDs exhibit high efficiency as well as the bottom OLEDs and show an excellently angle-stable characteristic. The white TEOLED exhibits a maximum current efficiency of 12.4 cd/A, and the CIE coordinates at 6 V only shift by (0.048, 0.046) from 0 degrees to 60 degrees. It can be attributed to the less angle-dependent cavity emission of the TEOLED with AGA cathode. (C) 2013 Optical Society of America
引用
收藏
页码:1742 / 1744
页数:3
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