The interplay of thermally activated delayed fluorescence (TADF) and room temperature organic phosphorescence in sterically-constrained donor-acceptor charge-transfer molecules

被引：222
|
作者：
Ward, Jonathan S. [1 ]
Nobuyasu, Roberto S. [2 ]
Batsanov, Andrei S. [1 ]
Data, Przemyslaw [2 ]
Monkman, Andrew P. [2 ]
Dias, Fernando B. [2 ]
Bryce, Martin R. [1 ]
机构：
[1] Univ Durham, Dept Chem, South Rd, Durham DH1 3LE, England
[2] Univ Durham, Dept Phys, Durham DH1 3LE, England
来源：
CHEMICAL COMMUNICATIONS | 2016年 / 52卷 / 12期
基金：
英国工程与自然科学研究理事会;
关键词：
LIGHT-EMITTING-DIODES; EMISSION; ELECTROLUMINESCENCE; EFFICIENCY; DESIGN; OLEDS;
D O I：
10.1039/c5cc09645f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of phenothiazine-dibenzothiophene-S, S-dioxide charge-transfer molecules have been synthesized. Increasing steric restriction around the donor-acceptor bond significantly alters contributions from TADF and phosphorescence. Bulky substituents on the 1-(and 9) position(s) of the phenothiazine result in no TADF in the solid state; instead strong phosphorescence is observed at ambient temperature.
引用
收藏
页码：2612 / 2615
页数：4
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