Deep-Red to Near-Infrared Thermally Activated Delayed Fluorescence in Organic Solid Films and Electroluminescent Devices

被引：313

作者：

Li, Chenglong ^{[1
]}

Duan, Ruihong ^{[2
]}

Liang, Baoyan ^{[1
]}

Han, Guangchao ^{[2
]}

Wang, Shipan ^{[1
]}

Ye, Kaiqi ^{[1
]}

Liu, Yu ^{[1
]}

Yi, Yuanping ^{[2
]}

Wang, Yue ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2017年 / 56卷 / 38期

基金：

中国国家自然科学基金;

关键词：

deep-red emission; near-infrared emission; organic light-emitting devices; thermally activated delayed fluorescence; LIGHT-EMITTING-DIODES; EXTERNAL QUANTUM EFFICIENCY; CHARGE-TRANSFER; LUMINESCENT PROPERTIES; INDUCED EMISSION; ROLL-OFF; OLEDS; BLUE; DERIVATIVES; CONVERSION;

D O I：

10.1002/anie.201706464

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The design and synthesis of highly efficient deep red (DR) and near-infrared (NIR) organic emitting materials with characteristic of thermally activated delayed fluorescence (TADF) still remains a great challenge. A strategy was developed to construct TADF organic solid films with strong DR or NIR emission feature. The triphenylamine (TPA) and quinoxaline-6,7-dicarbonitrile (QCN) were employed as electron donor (D) and acceptor (A), respectively, to synthesize a TADF compound, TPA-QCN. The TPA-QCN molecule with orange-red emission in solution was employed as a dopant to prepare DR and NIR luminescent solid thin films. The high doped concentration and neat films exhibited efficient DR and NIR emissions, respectively. The highly efficient DR and NIR organic light-emitting devices (OLEDs) were fabricated by regulating TPA-QCN dopant concentration in the emitting layers.

引用

页码：11525 / 11529

页数：5

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