High-Efficiency White Organic Light-Emitting Diodes Based on a Blue Thermally Activated Delayed Fluorescent Emitter Combined with Green and Red Fluorescent Emitters

被引：236
|
作者：
Higuchi, Takahiro [1 ]
Nakanotani, Hajime [1 ,2 ]
Adachi, Chihaya [1 ,2 ,3 ]
机构：
[1] Kyushu Univ, Ctr Organ Photon & Elect Res OPERA, Nishi Ku, Fukuoka 8190395, Japan
[2] Kyushu Univ, Ctr Organ Photon & Elect Res OPERA, Adachi Mol Exciton Engn Project, JST,ERATO,Nishi Ku, Fukuoka 8190395, Japan
[3] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, Fukuoka 8190395, Japan
来源：
ADVANCED MATERIALS | 2015年 / 27卷 / 12期
基金：
日本科学技术振兴机构;
关键词：
energy transfer; fluorescent dyes; organic light-emitting diodes; thermally activated delayed fluorescence; triplet harvesting; TRIPLET EXCITONS; SINGLET; MANAGEMENT; EMISSION; OLEDS;
D O I：
10.1002/adma.201404967
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new device architecture for highly efficient white organic light-emitting diodes is proposed, using a molecule exhibiting blue thermally activated delayed fluorescence as a common source of singlet excitons for molecules emitting red and green light based on conventional fluorescence. The device, with an optimum combination of materials, shows a maximum external quantum efficiency of over 12% without using phosphorescent emitters.
引用
收藏
页码：2019 / 2023
页数：5
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