Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters

被引：1

作者：

Weerasinghe, Rangani Wathsala ^{[1
]}

dos Santos, John Marques ^{[2
]}

Chitose, Youhei ^{[1
,3
]}

Matulaitis, Tomas ^{[2
]}

Warriner, Stuart L. ^{[6
]}

Barman, Debasish ^{[1
]}

Chan, Chin-Yiu ^{[4
,5
]}

Tsuchiya, Youichi ^{[1
]}

Zysman-Colman, Eli ^{[2
]}

Adachi, Chihaya ^{[1
,3
]}

机构：

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

[2] Univ St Andrews, Organ Semicond Ctr, EaStCHEM Sch Chem, St Andrews KY16 9ST, Scotland

[3] Kyushu Univ, Ctr Mol Syst CMS, Grad Sch Engn, Dept Appl Chem, 744 Motooka, Fukuoka 8190395, Japan

[4] City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China

[5] City Univ Hong Kong, Dept Chem, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China

[6] Univ Leeds, Sch Chem, Leeds LS2 9JT, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2024年 / 26卷 / 32期

关键词：

EMISSION;

D O I：

10.1039/d4cp02664k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two novel deep-blue multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters, 1B-CzCrs and 2B-CzCrs, containing a fused carbazole unit were synthesized. The carbazole contributed to the emergence of TADF in these small molecules. Particularly, organic light-emitting diodes with 1B-CzCrs doped in the mCP host achieve a maximum external quantum efficiency of 12.8% at CIE coordinates of (0.146, 0.062). Two novel deep-blue multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters, 1B-CzCrs and 2B-CzCrs, containing a fused carbazole unit were synthesized.

引用

页码：21337 / 21341

页数：5

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