Red phosphorescent organic light-emitting diodes using pyridine based electron transport type triplet host materials

被引：7

作者：

Jeon, Soon Ok ^{[1
]}

Lee, Jun Yeob ^{[1
]}

机构：

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

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 127卷 / 1-2期

关键词：

Red phosphorescent organic light-emitting diode; High efficiency; Pyridine; Triplet host; BIPOLAR HOST; EFFICIENCY; GREEN;

D O I：

10.1016/j.matchemphys.2011.02.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pyridine based electron transport type host materials were developed and their device performances were investigated according to doping concentration. The pyridine substituent was combined with a spirofluorenebenzofluorene core unit and a high quantum efficiency of 13.3% was achieved in red phosphorescent organic light-emitting diodes at a low doping concentration of 2%. A simple red device without any electron transport layer could be fabricated and a simple device without any electron transport layer showed better power efficiency than the standard device with an electron transport layer. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：300 / 304

页数：5

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