Ideal Bipolar Host Materials with Bis-benzimidazole Unit for Highly Efficient Solution-Processed Green Electrophosphorescent Devices

被引：26

作者：

Jiang, Wei ^{[1
]}

Tang, Jinan ^{[1
]}

Ban, Xinxin ^{[1
]}

Sun, Yueming ^{[1
]}

Duan, Lian ^{[2
]}

Qiu, Yong ^{[2
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China

[2] Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Minist Educ, Beijing 100084, Peoples R China

来源：

ORGANIC LETTERS | 2014年 / 16卷 / 20期

基金：

中国国家自然科学基金;

关键词：

LIGHT-EMITTING-DIODES; BLUE ORGANIC ELECTROPHOSPHORESCENCE; PHOSPHORESCENT EMISSION; ENERGY-TRANSFER; MECHANISM; DERIVATIVES; MOLECULES; OLEDS;

D O I：

10.1021/ol502531y

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

An ideal host material with high triplet energy, suitable HOMO energy level, excellent thermal and electrochemical stability, and bipolar charge carrier transport ability was synthesized. A high external quantum efficiency of 13.7% and a luminance efficiency of 48.2 cd A(-1) with low efficiency roll-off were achieved in solution-processed green electrophosphorescent devices.

引用

页码：5346 / 5349

页数：4

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