Highly efficient orange and white phosphorescent organic light-emitting devices with simplified structure

被引：10
作者：
Xue, Kaiwen [1 ]
Han, Guangguang [1 ]
Chen, Bingye [1 ]
Duan, Yu [1 ]
Chen, Ping [1 ]
Zhao, Yi [1 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130023, Peoples R China
来源：
ORGANIC ELECTRONICS | 2015年 / 26卷
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
Organic light-emitting device; Simplified structure; Phosphorescent; White light emission; DIODES; EMISSION; COLOR;
D O I：
10.1016/j.orgel.2015.07.037
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We successfully developed efficient orange and white phosphorescent organic light-emitting devices based on simplified structure. The maximum power efficiency and current efficiency of the orange device with only 5 nm emission layer are 34.1 lm/W and 38.0 cd/A. Performances of the simplified orange devices can be greatly improved to 62.6 lm/W (79.7 cd/A) by introducing one blue phosphorescent dye iridium(III)[bis(4,6-difluorophenyl)-pyridina-to-N, C2'] picolinate into the orange emission layer. The emission mechanism of the above orange devices was also discussed. White light emission with Commission International de L'Eclairage coordinates of (0.36, 0.45) and efficiency of 40.6 lm/W (38.7 cd/A) was obtained by exactly adjusting the doping concentration of orange phosphorescent dye. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：225 / 229
页数：5
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