Highly efficient blue and white phosphorescent OLEDs based on an iridium complex

被引：17
|
作者：
Wu, Chuan [1 ,2 ,3 ]
Tao, Silu [1 ]
Chen, Mingming [1 ]
Wong, Fu-Lung [2 ,3 ]
Yang, Qingdan [2 ,3 ]
Mo, Hin-Wai [2 ,3 ]
Zhao, Weiming [4 ]
Lee, Chun-Sing [2 ,3 ]
机构：
[1] UESTC, Sch Optoelect Informat, Chengdu 610054, Peoples R China
[2] City Univ Hong Kong, Ctr Super Diamond & Adv Films, Kowloon Tong, Hong Kong, Peoples R China
[3] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon Tong, Hong Kong, Peoples R China
[4] Dongguan LITEWELL OLED Technol Inc, Dongguan 523656, Peoples R China
来源：
DYES AND PIGMENTS | 2013年 / 96卷 / 01期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
Organic light-emitting devices; Electrophosphorescence; Iridium complex; Blue and white emission; LIGHT-EMITTING-DIODES; EXTERNAL QUANTUM EFFICIENCY; ORGANIC ELECTROPHOSPHORESCENCE; IR(III) COMPLEXES; HOST MATERIALS; BIPOLAR HOST; DEVICES; GREEN; DESIGN;
D O I：
10.1016/j.dyepig.2012.08.008
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A new blue-emitting iridium complex, Iridium(III) bis [(2,3,4-trifluorophenyl) -pyridinato-N, C-2] picolinate (Ir(tfpd)(2)pic) has been designed, synthesized and used to fabricate blue phosphorescent organic light-emitting devices with a efficiency up to 41.4 Im/W (52.6 cd/A). Furthermore, by combining the blue phosphorescence of Ir(tfpd)(2)pic and the yellow emission of iridium(III) bis [2-(2-naphthyl)-pyridine] (acetylacetonate) (Ir(npy)(2)acac), highly efficient white emission with a maximum efficiency of 49.0 Im/W (54.5 cd/A) has been achieved. The results indicate that Ir(tfpd)(2)pic is a promising blue phosphor for the applications in highly efficient blue and white OLEDs. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：237 / 241
页数：5
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