Tris(triazolo)triazine-based emitters for solution-processed blue thermally activated delayed fluorescence organic light-emitting diodes

被引：17
作者：
Hundemer, Fabian [1 ]
Crovini, Ettore [2 ]
Wada, Yoshimasa [3 ]
Kaji, Hironori [3 ]
Braese, Stefan [1 ,4 ]
Zysman-Colman, Eli [2 ]
机构：
[1] Karlsruhe Inst Technol KIT, Inst Organ Chem, Fritz Haber Weg 6, D-76131 Karlsruhe, Germany
[2] Univ St Andrews, EaStCHEM Sch Chem, Organ Semicond Ctr, St Andrews KY16 9ST, Fife, Scotland
[3] Kyoto Univ Uji, Inst Chem Res, Kyoto 6110011, Japan
[4] Karlsruhe Inst Technol KIT, Inst Biol & Chem Syst Funct Mol Syst IBCS FMS, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany
来源：
MATERIALS ADVANCES | 2020年 / 1卷 / 08期
基金：
欧盟地平线“2020”;
关键词：
ACCEPTOR; PERFORMANCE; EFFICIENCY; MOLECULES; EMISSION; SINGLET; DESIGN; BORON;
D O I：
10.1039/d0ma00659a
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report a new emitter 3,4,5-3TCz-TTT based on a tris(triazolo)triazine acceptor that shows thermally activated delayed fluorescence and cross-compare its performance with the recently reported analogue, 3DMAC-TTT. These compounds show blue emission and delayed fluorescence with delayed lifetimes on the order of milliseconds. Solution-processed organic light-emitting diodes achieving maximum external quantum efficiencies, EQE(max), of 5.8% for 3,4,5-3TCz-TTT and 11.0% for 3DMAC-TTT.
引用
收藏
页码：2862 / 2871
页数：10
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