Host Engineering for High Efficiency in Phosphorescent White Organic Light-Emitting Diodes

被引：0
|
作者：
Yook, Kyoung Soo [1 ]
Jeon, Soon Ok [1 ]
Joo, Chul Woong [1 ]
Lee, Jun Yeob [1 ]
机构：
[1] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi, South Korea
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2009年 / 514卷
关键词：
charge transport; phosphorescent white organic light emitting diodes; quantum efficiency; TRIPLET EXCITONS; DEVICES;
D O I：
10.1080/15421400903235530
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
High efficiency phosphorescent white organic light emitting diodes (PHWOLEDs) were fabricated by controlling the charge transport properties of host materials. Blue/red/blue stack structure was used and the use of hole transport type host material in red emitting layer was effective to improve the quantum efficiency of PHWOLEDs. High quantum efficiency of 12.2% was obtained in PHWOLEDs.
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页码：470 / 476
页数：7
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