High efficiency deep blue phosphorescent organic light-emitting diodes

被引：60

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 Do, South Korea

来源：

ORGANIC ELECTRONICS | 2009年 / 10卷 / 01期

关键词：

Deep blue phosphorescent devices; Quantum efficiency; Pure blue color;

D O I：

10.1016/j.orgel.2008.10.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Deep blue phosphorescent organic light-emitting diodes have been developed by using tris((3,5-difluoro-4-cyanophenyl)pyridine) iridium (FCNIr) as a blue phosphorescent dopant. The FCNIr showed a wide triplet bandgap of 2.8 eV for deep blue emission due to a strong electron withdrawing CN substituent in addition to F unit. Doping of the FCNIr in N,N'-dicarbazolyl-3,5-benzene gave a high quantum efficiency of 9.2% with a CIE color coordinate of (0.15, 0.16). (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：170 / 173

页数：4

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