A novel pyrrolocarbazole donor for stable and highly efficient thermally activated delayed fluorescent emitters

被引：19
|
作者：
Kim, Ji Han [1 ]
Eum, Minsik [2 ]
Kim, Tae Hyung [2 ]
Lee, Jun Yeob [1 ]
机构：
[1] Sungkyunkwan Univ, Sch Chem Engn, Suwon 446740, Gyeonggi, South Korea
[2] Doosan Corp, Electromat, OLED Dev Team, Yongin 448701, Gyeonggi, South Korea
来源：
DYES AND PIGMENTS | 2017年 / 136卷
基金：
新加坡国家研究基金会;
关键词：
Pyrrolocarbazole; Donor; Lifetime; Quantum efficiency; Delayed fluorescence; LIGHT-EMITTING-DIODES; EXTERNAL QUANTUM EFFICIENCY; PHOTOPHYSICAL PROPERTIES; HOST MATERIAL; DESIGN; DEVICES; GREEN;
D O I：
10.1016/j.dyepig.2016.09.013
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A novel pyrrolocarbazole moiety was developed as a new donor moiety of thermally activated delayed fluorescent emitters. The new pyrrolocarbazole donor moiety possessed stronger donor strength than carbazole and better stability than acridine, which enhanced the quantum efficiency and lifetime of the thermally activated delayed fluorescent emitters. The pyrrolocarbazole donor, diphenyltriazine acceptor, and a phenyl linker merged emitter performed as a highly efficient delayed fluorescent emitter by providing high quantum efficiency of 17.7%. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：529 / 534
页数：6
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