Red Electrophosphorescence from Oxadiazoles-Functionalized Iridium Complexes in Polymer Light-Emitting Devices
WU Zhong-Lian1,2 , LUO Cui-Ping1 , HU Zheng-Yong1 , JIANG Chang-Yun2 , HUANG Feng-Liang1 , ZHU Ke-Ming1 , ZHU Mei-Xiang1 ,
ZHU Wei-Guo1
1 College of Chemistry, Xiangtan University, Xiangtan 411105
2 IPOMD, South China University of Technology, Guangzhou 510640
Red Electrophosphorescence from Oxadiazoles-Functionalized Iridium Complexes in Polymer Light-Emitting Devices
WU Zhong-Lian1,2 ;LUO Cui-Ping1 ;HU Zheng-Yong1 ;JIANG Chang-Yun2 ;HUANG Feng-Liang1 ;ZHU Ke-Ming1 ;ZHU Mei-Xiang1 ,
ZHU Wei-Guo1
1 College of Chemistry, Xiangtan University, Xiangtan 411105
2 IPOMD, South China University of Technology, Guangzhou 510640
关键词 ：
78.60.Fi ,
78.66.Qn ,
85.06.Jb
Abstract ： A type of oxadiazole-functionalized iridium complex is newly employed as red phosphor emitter in polymer light-emitting devices (PLEDs) using a blend of poly (9,9-dioctylfluorene)(PFO) and 2-tert-butylphenyl-5-biphenyl-1,3,4-oxadiazole (PBD) as a host matrix. The devices show bright red electrophosphorescence with dominant peaks at about 593nm and shoulders at about 642nm. The highest luminance efficiency of 3.3cd/A at 9.3V and maximum luminance of 2912cd/m2 at 14.0V are achieved in the devices. At current density of 100mA/cm2 , the devices still exhibit luminance efficiency of 2.2cd/A and luminance of 2300cd/m2 . This indicates that the oxadiazole-functionalized iridium complexes have improved optoelectronic properties in the devices at high current density.
Key words ：
78.60.Fi
78.66.Qn
85.06.Jb
出版日期: 2006-11-01
引用本文:
WU Zhong-Lian;LUO Cui-Ping;HU Zheng-Yong;JIANG Chang-Yun;HUANG Feng-Liang;ZHU Ke-Ming;ZHU Mei-Xiang;
ZHU Wei-Guo. Red Electrophosphorescence from Oxadiazoles-Functionalized Iridium Complexes in Polymer Light-Emitting Devices[J]. 中国物理快报, 2006, 23(11): 3091-3093.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I11/3091
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