A Non-Doped Phosphorescent Organic Light-Emitting Device with Above 31% External Quantum Efficiency

被引：150
作者：
Wang, Qi [1 ,2 ,3 ,4 ]
Oswald, Iain W. H. [5 ]
Yang, Xiaolong [4 ]
Zhou, Guijiang [4 ]
Jia, Huiping [1 ,2 ]
Qiao, Qiquan [3 ]
Chen, Yonghua [6 ]
Hoshikawa-Halbert, Jason [7 ]
Gnade, Bruce E. [1 ,2 ]
机构：
[1] Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75083 USA
[2] Univ Texas Dallas, Erik Jonsson Sch Engn & Comp Sci, Richardson, TX 75083 USA
[3] S Dakota State Univ, Dept Elect Engn & Comp Sci, Coll Engn, Brookings, SD 57007 USA
[4] Xi An Jiao Tong Univ, Dept Appl Chem, Xian 710049, Peoples R China
[5] Univ Texas Dallas, Dept Chem, Richardson, TX 75083 USA
[6] Wake Forest Univ, Ctr Nanotechnol & Mol Mat, Dept Phys, Winston Salem, NC 27106 USA
[7] Kyoto Univ, Dept Synthet Chem & Biol Chem, Nishikyo Ku, Kyoto 6158510, Japan
来源：
ADVANCED MATERIALS | 2014年 / 26卷 / 48期
基金：
美国国家科学基金会;
关键词：
FUNCTIONALIZED BETA-DIKETONATE; TRIPLET-TRIPLET ANNIHILATION; LOW-DRIVING-VOLTAGE; PLATINUM(II) COMPLEXES; ROLL-OFF; TRANSPORT MATERIAL; IRIDIUM COMPLEXES; ENERGY-LEVEL; THIN-FILMS; DIODES;
D O I：
10.1002/adma.201402947
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
(Figure Presented) The demonstrated square-planar Pt(II)-complex has reduced triplet-triplet quenching and therefore a near unity quantum yield in the neat thin film. A non-doped phosphorescent organic light-emitting diode (PhOLED) based on this emitter achieves (31.1 ± 0.1)% external quantum efficiency without any out-coupling, which shows that a non-doped PhOLED can be comparable in efficiency to the best doped devices with very complicated device structures. © 2014 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码：8107 / 8113
页数：7
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