Fluorenobenzofuran as the core structure of high triplet energy host materials for green phosphorescent organic light-emitting diodes

被引：26

作者：

Jeon, Soon Ok ^{[1
]}

Lee, Jun Yeob ^{[1
]}

机构：

[1] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 21期

关键词：

EFFICIENT ELECTROPHOSPHORESCENT DEVICES; BIPOLAR HOST; OLEDS; ELECTRON; RED;

D O I：

10.1039/c2jm30473b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thermally stable high triplet energy host materials based on a fluorenobenzofuran (BFF) core were synthesized and the device performances of green phosphorescent organic light-emitting diodes were investigated. BFF was designed as the electron transport type core with improved thermal stability. Two host materials based on the BFF core showed a high glass transition temperature over 140 degrees C and high triplet energy above 2.70 eV. They were used as the host materials for green phosphorescent organic light-emitting diodes and a high quantum efficiency close to 20% was achieved.

引用

页码：10537 / 10541

页数：5

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