High efficiency phosphorescent organic light emitting diodes using triplet quantum well structure

被引：44

作者：

Kim, Sung Hyun

Jang, Jyongsik

Hong, Jae-Min

Lee, Jun Yeob

机构：

[1] Dankook Univ, Dept Polymer Sci & Engn, Seoul 140714, South Korea

[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151742, South Korea

[3] Korea Inst Sci & Technol, Opto Elect Mat Res Ctr, Seoul 130650, South Korea

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 17期

关键词：

D O I：

10.1063/1.2731435

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Light emission in phosphorescent quantum well structure which can confine excitons within an emitting layer was investigated. A multilayer quantum well structure which has a narrow triplet band gap host material sandwiched between wide triplet band gap host materials was designed, and device performances were studied. The multilayer emitting structure gave high efficiency of 47 cd/A compared with 11 cd/A of standard green devices. (c) 2007 American Institute of Physics.

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页数：3

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