Rational Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

被引：204

作者：

Chan, Chin-Yiu ^{[1
]}

Cui, Lin-Song ^{[1
]}

Kim, Jong Uk ^{[1
]}

Nakanotani, Hajime ^{[1
]}

Adachi, Chihaya ^{[1
,2
]}

机构：

[1] Kyushu Univ, Ctr Organ Photon & Elect Res OPERA, 744 Motooka, Fukuoka 8190395, Japan

[2] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, 744 Motooka, Fukuoka 8190395, Japan

来源：

ADVANCED FUNCTIONAL MATERIALS | 2018年 / 28卷 / 11期

关键词：

deep-blue fluorescence; hyperfluorescence; organic light-emitting diodes; thermal activated delayed fluorescence; LIGHT-EMITTING-DIODES; EXTERNAL QUANTUM EFFICIENCY; TRANSITION-METAL-COMPLEXES; DEVICES; ELECTROLUMINESCENCE; DERIVATIVES; ELECTRONICS; STRATEGY; ACCEPTOR; GREEN;

D O I：

10.1002/adfm.201706023

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

By simple modification of the functional groups on the donor unit, the thermally activated delayed fluorescence (TADF) properties of emitters can easily be manipulated. A series of deep blue to blue emissive TADF derivatives is developed, capable of deep-blue emissions from 403 to 460 nm in toluene. Deep-blue organic light-emitting diodes (OLEDs) based on this series of TADF emitters are fabricated, resulting in an electroluminescence peak at 428 nm and a high external quantum efficiency of up to 10.3%. One deep-blue OLED has achieved the commission internationale de l'eclairage (CIE) coordinates of (0.156, 0.063), which is among the best reported TADF performances for deep-blue OLEDs with CIEy < 0.07.

引用

页数：7

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