Dibenzo[a,j]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters

被引：306
作者：
Data, Przemyslaw [1 ,2 ]
Pander, Piotr [1 ,2 ]
Okazaki, Masato [3 ]
Takeda, Youhei [3 ]
Minakata, Satoshi [3 ]
Monkman, Andrew P. [1 ]
机构：
[1] Univ Durham, Dept Phys, South Rd, Durham DH1 3LE, England
[2] Silesian Tech Univ, Fac Chem, M Strzody 9, PL-44100 Gliwice, Poland
[3] Osaka Univ, Grad Sch Engn, Dept Appl Chem, Yamadaoka 2-1, Suita, Osaka 5650871, Japan
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 19期
基金：
欧盟地平线“2020”; 英国工程与自然科学研究理事会; 日本学术振兴会;
关键词：
charge transfer; electroluminescence; exciplexes; fluorescence; organic light-emitting diodes; TRIPLET-TRIPLET ANNIHILATION; EMITTING-DIODES; EFFICIENCY; ELECTROLUMINESCENCE; CONVERSION; DESIGN; DERIVATIVES; COMPLEXES; EMISSION; OLEDS;
D O I：
10.1002/anie.201600113
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new family of thermally activated delayed fluorescence (TADF) emitters based on U-shaped D-A-D architecture with a novel accepting unit has been developed. All investigated compounds have small singlet-triplet energy splitting (E-ST) ranging from 0.02 to 0.20eV and showed efficient TADF properties. The lowest triplet state of the acceptor unit plays the key role in the TADF mechanism. OLEDs fabricated with these TADF emitters achieved excellent efficiencies up to 16% external quantum efficiency (EQE).
引用
收藏
页码：5739 / 5744
页数：6
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