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

页码：8107 / 8113

页数：7

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