Synthesis and properties of ipsilateral double substituted diphenylsulfone thermally activated delayed fluorescent materials

被引：3
作者：
Zhang, Di [1 ]
Wei, Huaixin [1 ,2 ]
Wang, Yan [1 ]
Dai, Guoliang [1 ]
Zhao, Xin [1 ]
机构：
[1] Suzhou Univ Sci & Technol, Coll Chem Biol & Mat Engn, Suzhou 215009, Jiangsu, Peoples R China
[2] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China
来源：
DYES AND PIGMENTS | 2020年 / 174卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Organic light-emitting diodes; Diphenylsulfone; Thermally activated delayed fluorescent; Photoelectric performance; LIGHT-EMITTING-DIODES; MOLECULAR DESIGN; EFFICIENCY; PHOSPHORESCENCE;
D O I：
10.1016/j.dyepig.2019.108028
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Two novel donor-acceptor (D-A) type thermally activated delayed fluorescent (TADF) materials 2PXZDPS and 2DMACDPS are synthesized by attaching two donors phenoxazine (PXZ) or 9,9-dimethyl-9,10-dihydroacridine (DMAC) to the ipsilateral side of the acceptor diphenylsulfone group. The two materials show high yield, good thermal properties, suitable photophysical properties, high triplet energy and small energy difference between singlet and triplet states, leading to feasible thermally activated delayed fluorescence (TADF) organic light emitting diodes (OLEDs). Both 2PXZDPS and 2DMACDPS show excellent performance in OLED. 2PXZDPS based OLED give the maximum external quantum efficiency (EQE(max)) of 20.7% and low turn-on voltage of 2.2 V.
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收藏
页数：6
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