High-performance blue electroluminescent devices based on 2-(4-biphenylyl)-5-(4-carbazole-9-yl)phenyl-1,3,4-oxadiazole

被引:84
作者
Guan, M
Bian, ZQ [1 ]
Zhou, YF
Li, FY
Li, ZJ
Huang, CH
机构
[1] Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
[2] Zhengzhou Univ, Dept Chem, Zhengzhou 450052, Peoples R China
关键词
D O I
10.1039/b307571k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An electron transporting moiety (1,3,4-oxadiazole) and a hole transporting moiety (carbazole) were combined to create 2-(4-biphenylyl)-5-(4-carbazole-9-yl)phenyl-1,3,4-oxadiazole (CzOxa), a three layer device with a configuration of ITO/TPD (50 nm)/CzOxa(40 nm)/AlQ(40 nm)/Mg0.9Ag0.1(200 nm)/Ag(80 nm) which exhibited a blue emission peak at similar to470 nm (x=0.14, y=0.19) with a maximum luminance of 26200 cd m(-2) at a drive voltage of 15 V and a maximum luminous efficiency of 2.25 lm W-1.
引用
收藏
页码:2708 / 2709
页数:2
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