High-Efficiency Blue Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence from Phenoxaphosphine and Phenoxathiin Derivatives

被引：190
作者：
Lee, Sae Youn [1 ]
Adachi, Chihaya [1 ,2 ]
Yasuda, Takuma [1 ,3 ]
机构：
[1] Kyushu Univ, Grad Sch Engn, Dept Appl Chem, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[2] Kyushu Univ, Ctr Organ Photon & Elect Res OPERA, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[3] Kyushu Univ, INAMORI Frontier Res Ctr, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
来源：
ADVANCED MATERIALS | 2016年 / 28卷 / 23期
基金：
日本学术振兴会; 日本科学技术振兴机构;
关键词：
HIGH TRIPLET ENERGY; QUANTUM EFFICIENCY; PHOSPHINE-OXIDE; COMPLEXES; DEVICES; OLEDS; HOST; EXCITONS; ELECTROPHOSPHORESCENCE; ELECTROLUMINESCENCE;
D O I：
10.1002/adma.201506391
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
High-efficiency blue thermally activated delayed fluorescence (TADF) molecules, consisting of phenoxaphosphine oxide and phenoxathiin dioxide as acceptor units and 9,9-dimethylacridan as a donor unit, are reported. Maximum external electroluminescence quantum efficiencies of up to 20.5% are achieved in blue organic light-emitting diodes (OLEDs) by employing these materials as TADF emitters.
引用
收藏
页码：4626 / 4631
页数：6
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