Solution-Processable High Efficiency Yellow Electroluminescent Device Based On Cationic Iridium Complex

被引：0
|
作者：
Chen, Bing [1 ,2 ]
Li, Yanhu [1 ]
Yang, Wei [1 ]
Wu, Hongbin [1 ]
Cao, Yong [1 ]
Feng, Jiwen [2 ]
机构：
[1] South China Univ Technol, Key Lab Special Funct Mat, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
[2] Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
来源：
PROCEEDINGS OF CHINA DISPLAY/ASIA DISPLAY 2011 | 2011年
关键词：
Organic light-emitting devices; cationic iridium(III) complex; photoluminescence; electroluminescence; phosphorescence; EMITTING ELECTROCHEMICAL-CELLS; DIODES; COPOLYMERS; POLYMERS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A highly luminescent cationic iridium(III) complex with formula [Ir(Meppy)(2)(pybmzht)](+)(PF6)(-) was synthesized and characterized (where Meppy is 2-(4-methylphenyl)pyridine; pybmzht is 2,2-dimethy1-6-(2-(pyridin-2-y1)-1H- benzo [d]imidazol-1-yphexanenitrile). [Ir(Meppy)(2) (pybmzht)](+) (PF6)(-) exhibited yellow-emitting with PL peaked at 580 nm in solution. The no-doped electroluminescent device with the configuration; of ITO/PEDOT:PSS/complex/TPBI/CsF/A1 showed excellent properties with a luminous efficiency of 11 cd/A and an external quantum efficiency of 4.2%. High brightness of 12200 cd/m(2) and low turn on voltage of 4.3 V were realized while the host materials are absent. The results indicate that cationic iridium complexes are promising candidates in the high-efficiency no-doped electroluminescent device.
引用
收藏
页码：499 / 504
页数：6
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