Highly Efficient Green Phosphorescent OLED Based on Pyridine-containing Starburst Electron-transporting Materials

被引：23
|
作者：
Li, Yan-Jun [1 ]
Sasabe, Hisahiro [1 ,2 ]
Su, Shi-Jian [1 ]
Tanaka, Daisaku [1 ]
Takeda, Takashi [1 ]
Pu, Yong-Jin [2 ]
Kido, Junji [1 ,2 ]
机构：
[1] OITDA, Bunkyo Ku, Tokyo 1120014, Japan
[2] Yamagata Univ, Dept Organ Device Engn, Yonezawa, Yamagata 9928510, Japan
来源：
CHEMISTRY LETTERS | 2010年 / 39卷 / 02期
关键词：
LIGHT-EMITTING DEVICES; ORGANIC ELECTROLUMINESCENT DEVICES; LAYERS; CONFINEMENT; EMISSION; ENERGY;
D O I：
10.1246/cl.2010.140
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Starburst materials, 1,3,5-tris[3,5-bis(pyrid-4-yl)phenyl]benzene (1a) and 1.3,5-tris[3,5-bis(pyrid-3-yl)phenyl]benzene (1b) were designed and synthesized. By using fac-tris(2-phenylpyridyl)iridium(III) [Ir(ppy)(3)] as a green emitter and I as an electron-transporting material, a green OLED was fabricated. The OLED exhibited a maximum power efficiency (PE) of 96 lm W-1 with ail external quantum efficiency (EQE) of 23% at 2.1 cd m(-2), and a PE of 75 lm W-1 with an EQE of 23% Lit 100 cd m(-2).
引用
收藏
页码：140 / 141
页数：2
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