CN-carbazole modified diphenylsilane-type high triplet energy hosts for blue phosphorescent organic light-emitting diodes

被引：5

作者：

Yun, Ju Hui ^{[1
]}

Han, Si Hyun ^{[1
]}

Lee, Jun Yeob ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Chem Engn, 2066 Seobu Ro, Suwon 440746, Gyeonggi Do, South Korea

来源：

ORGANIC ELECTRONICS | 2018年 / 62卷

基金：

新加坡国家研究基金会;

关键词：

Host; Blue device; Phosphorescent device; Organic light-emitting diodes; Efficiency; EXTERNAL QUANTUM EFFICIENCY; LOW-DRIVING-VOLTAGE; ELECTROPHOSPHORESCENT DEVICES; ROLL-OFF; 30-PERCENT; DERIVATIVES; DOPANT; OLEDS;

D O I：

10.1016/j.orgel.2018.08.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Diphenylsilane-derived high triplet energy host materials were developed by coupling diphenylsilane with CN-modified carbazoles. Two host materials with two CN-modified carbazoles or one CN-modified carbazole were synthesized, and their photophysical and device behavior were investigated. The host materials delivered a high triplet energy over 3.00 eV, a high glass transition temperature over 130 degrees C, ambipolar charge transport, and high external quantum efficiency over 20% as hosts of deep blue-emitting Ir emitters.

引用

页码：342 / 350

页数：9

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