A study on the characteristics of OLEDs using Ir complex for blue phosphorescence

被引：21
作者：
Kim, So-Young
Kim, Jun-Ho
Ha, Yunkyoung
Lee, Seung-Hee
Seo, Ji-Hyun
Kim, Young-Kwan [1 ]
机构：
[1] Hongik Univ, Dept Informat Display, Seoul 121791, South Korea
[2] Hongik Univ, Dept Elect Engn, Seoul 121791, South Korea
[3] Hongik Univ, Dept Sci, Seoul 121791, South Korea
[4] Hongik Univ, Dept Ind Chem, Seoul 121791, South Korea
[5] Hongik Univ, Ctr Organ Mat & Informat Device, Seoul 121791, South Korea
来源：
CURRENT APPLIED PHYSICS | 2007年 / 7卷 / 04期
关键词：
OLEDs; blue phosphorescence; ligand; iridium complexes;
D O I：
10.1016/j.cap.2006.09.031
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Several iridium-based complexes were investigated as phosphorescent dopants. They achieved about 100% internal quantum efficiency, due to utilization of both singlet and triplet excitons in the radiative processes. We have fabricated phosphorescent OLEDs with 8% Ir(ppz)(3) as a triplet emissive dopant in various host materials. CBP, which has an efficiency of 0.20 cd/A, is the best host material. Furthermore, we synthesized metal-organic phosphor complexes based on Ir with different ligands as to (Im)(2)Ir(acac), (Im-R)(2)Ir(acac), and Ir(ppz)(2)(acac). (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：380 / 383
页数：4
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