Controlling Singlet-Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

被引：414

作者：

Cui, Lin-Song ^{[1
]}

Nomura, Hiroko ^{[4
]}

Geng, Yan ^{[1
]}

Kim, Jong Uk ^{[1
]}

Nakanotani, Hajime ^{[1
]}

Adachi, Chihaya ^{[1
,2
,3
]}

机构：

[1] Kyushu Univ, Ctr Organ Photon & Elect Res OPERA, Dept Appl Chem, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[2] Japan Sci & Technol Agcy, ERATO, Adachi Mol Exciton Engn Project, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

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

[4] Kyulux Inc, Fukuoka Ind Acad Symphon FiaS, Nishi Ku, Suite 227,Bldg 2,4-1 Kyudai Shinmachi, Fukuoka 8190388, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2017年 / 56卷 / 06期

关键词：

carbazole; fluorescence; organic electronics; organic light-emitting diodes; singlet-triplet splitting; LIGHT-EMITTING-DIODES; EXTERNAL QUANTUM EFFICIENCY; MOLECULAR DESIGN; ROLL-OFF; PHOSPHORESCENT; GREEN; ELECTROLUMINESCENCE; COMPLEXES; DEVICES; HOSTS;

D O I：

10.1002/anie.201609459

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The development of efficient metal-free organic emitters with thermally activated delayed fluorescence (TADF) properties for deep-blue emission is still challenging. A new family of deep-blue TADF emitters based on a donor-acceptor architecture has been developed. The electronic interaction between donor and acceptor plays a key role in the TADF mechanism. Deep-blue OLEDs fabricated with these TADF emitters achieved high external quantum efficiencies over 19.2% with CIE coordinates of (0.148, 0.098).

引用

页码：1571 / 1575

页数：5

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