High efficiency blue phosphorescent organic light emitting diodes using a simple device structure

被引：77

作者：

Jeon, Soon Ok ^{[1
]}

Yook, Kyoung Soo ^{[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：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 01期

关键词：

excitons; organic light emitting diodes; ELECTROPHOSPHORESCENCE; ENERGY;

D O I：

10.1063/1.3046288

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High efficiency blue phosphorescent organic light emitting diodes have been developed by using a simple device structure. A derivative of spirobifluorene based phosphine oxide was used both as a host and an electron transport layer with an exciton blocking function. A maximum quantum efficiency of 19.2% and a current efficiency of 37.2 cd/A were obtained by using a simple device structure without a hole blocking layer.

引用

页数：3

共 11 条

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