Robust phosphorescent platinum(II) complexes with tetradentate O∧N∧C∧N ligands: high efficiency OLEDs with excellent efficiency stability

被引:117
|
作者
Kui, Steven C. F. [1 ]
Chow, Pui Keong [1 ]
Cheng, Gang [1 ]
Kwok, Chi-Chung [1 ]
Kwong, Chun Lam [1 ]
Low, Kam-Hung [1 ]
Che, Chi-Ming [1 ]
机构
[1] Univ Hong Kong, State Key Lab Synthet Chem, HKU CAS Joint Lab New Mat, Dept Chem, Hong Kong, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
LIGHT-EMITTING-DIODES; DESIGN;
D O I
10.1039/c2cc37862k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The Pt(II) complexes (1-3) bearing tetradentate (ONCN)-N-boolean AND-C-boolean AND-N-boolean AND ligands display high emission quantum yields (0.76-0.90) and good thermal stability (T-d > 400 degrees C). Complex 3 is an excellent green phosphorescence dopant for OLEDs with excellent efficiency and low efficiency roll-off (eta(L), eta(Ext)(max) = 66.7 cd A(-1), 18.2%; eta(L), eta(Ext) (1000 cd m(-2)) = 65.1 cd A(-1), 17.7%).
引用
收藏
页码:1497 / 1499
页数:3
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