Thermally stable indoloacridine type host material for high efficiency blue phosphorescent organic light-emitting diodes

被引：16
作者：
Seo, Jeong-A [1 ,2 ]
Gong, Myoung Seon [1 ,2 ]
Lee, Jun Yeob [3 ]
机构：
[1] Dankook Univ, Dept Nanobiomed Sci, Chungnam 330714, South Korea
[2] Dankook Univ, PLUS NBM Global Res Ctr Regenerat Med BK21, Chungnam 330714, South Korea
[3] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi Do, South Korea
来源：
ORGANIC ELECTRONICS | 2014年 / 15卷 / 12期
关键词：
Indoloacridine; Dibenzofuran; Host; High triplet energy; Thermal stability; EXTERNAL QUANTUM EFFICIENCY; BIPOLAR HOST; DEEP BLUE; DIBENZOFURAN; OLEDS; ELECTROPHOSPHORESCENCE; STABILITY; GREEN; VOLTAGE;
D O I：
10.1016/j.orgel.2014.10.020
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High triplet energy materials derived from carbazole or alpha-carboline modified indoloacridine were synthesized and device characteristics of blue triplet emitter doped devices were investigated. The indoloacridine derived host materials showed a high triplet energy above 2.80 eV and a high glass transition temperature over 170 degrees C due to rigid nature of the molecular structure. The indoloacridine based host materials could approach high external quantum efficiency above 20% in blue phosphorescent organic light-emitting diodes. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：3773 / 3779
页数：7
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