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：248

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

页码：2019 / 2023

页数：5

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