High-Color-Quality Blue Top-Emitting Organic Light-Emitting Diodes with Enhanced Contrast Ratio

被引：3
|
作者：
Zhang, Mingxiao [1 ]
Chen, Zhijian
Xiao, Lixin
Qu, Bo
Gong, Qihuang
机构：
[1] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2013年 / 52卷 / 05期
基金：
中国国家自然科学基金;
关键词：
HIGH-EFFICIENCY; DEVICES; TRANSPARENT; DISPLAYS; EMISSION; CATHODE;
D O I：
10.7567/JJAP.52.05DC17
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
On the basis of a Ag:MoO3 anode, we fabricated blue top-emitting organic light-emitting diodes with enhanced contrast ratio. After doping with MoO3, the reflectivity of Ag anode was reduced by a great ratio. Owing to the decrease in the anode reflectivity, the total reflectivity of the devices also decreased. Accordingly, the contrast ratio of the devices was enhanced. In addition, a purer blue emission was obtained from devices with a low-reflectivity anode. We obtained a blue emission with a spectra peak at 436nm from top-emitting devices based on 4,4'-bis(2,2'-diphenylvinyl)-1,1'-biphenyl (DPVBi). The emission spectra of the top-emitting devices with a Ag:MoO3 anode were very stable at different view angles. (C) 2013 The Japan Society of Applied Physics
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页数：4
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