High triplet energy electron transport type exciton blocking materials for stable blue phosphorescent organic light-emitting diodes

被引：38
|
作者：
Kang, Yu Jin [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 | 2016年 / 32卷
关键词：
Exciton blocking layer; Dibenzothiophene; Dibenzofuran; Diphenyltriazine; EFFICIENCY ROLL-OFF; QUANTUM EFFICIENCY; DEEP-BLUE; DEVICE; ELECTROPHOSPHORESCENCE; LIFETIME; GREEN; GAP;
D O I：
10.1016/j.orgel.2016.02.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High triplet energy electron transport materials with dibenzothiophene and dibenzofuran cores modified with a diphenyltriazine unit were investigated as electron transport type exciton blocking materials for stable blue phosphorescent organic light-emitting diodes. The two exciton blocking materials showed high triplet energy above 2.80 eV and enhanced quantum efficiency of the blue phosphorescent devices by more than 40% while maintaining stability of the pristine blue devices without the high triplet energy exciton blocking layer. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：109 / 114
页数：6
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