Red phosphorescent organic light-emitting diodes with indium tin oxide/single organic layer/Al simple device structure

被引：21

作者：

Joo, Chul Woong ^{[1
]}

Jeon, Soon Ok ^{[1
]}

Yook, Kyoung Soo ^{[1
]}

Lee, Jun Yeob ^{[1
]}

机构：

[1] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Kyeonggi Do, South Korea

来源：

ORGANIC ELECTRONICS | 2010年 / 11卷 / 01期

关键词：

Simple device structure; Phosphine oxide; High efficiency; Organic light-emitting diodes; EFFICIENCY;

D O I：

10.1016/j.orgel.2009.09.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple red phosphorescent organic light-emitting diode with a device structure of indium tin oxide (ITO)/single organic layer/Al was developed using a mixed host emitting layer of 2,7-bis(diphenylphosphoryl)spiro[fluorene-7,11'-benzofluorene] (SPPO21) and N,N'-di(1-naphthyl)-N,N'-diphenylbenzidine (NPB). Holes were directly injected from the ITO to the emitting layer through the NPB, while electrons were injected from the Al to the emitting layer through the SPPO21. The quantum efficiency of the simple device was comparable to that of the common red device. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：36 / 40

页数：5

共 15 条

[1] Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].

Adachi, C ;

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (10) :5048-5051

[2] New charge-carrier blocking materials for high efficiency OLEDs [J].

Adamovich, VI ;

Cordero, SR ;

Djurovich, PI ;

Tamayo, A ;

Thompson, ME ;

D'Andrade, BW ;

Forrest, SR .

ORGANIC ELECTRONICS, 2003, 4 (2-3) :77-87

[3] Phosphorescent materials for application to organic light emitting devices [J].

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

PURE AND APPLIED CHEMISTRY, 1999, 71 (11) :2095-2106

[4] Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layer [J].

Ikai, M ;

Tokito, S ;

Sakamoto, Y ;

Suzuki, T ;

Taga, Y .

APPLIED PHYSICS LETTERS, 2001, 79 (02) :156-158

[5] High efficiency blue phosphorescent organic light emitting diodes using a simple device structure [J].

Jeon, Soon Ok ;

Yook, Kyoung Soo ;

Joo, Chul Woong ;

Lee, Jun Yeob .

APPLIED PHYSICS LETTERS, 2009, 94 (01)

[6] 100% internal quantum efficiency and stable efficiency roll-off in phosphorescent light-emitting diodes using a high triplet energy hole transport material [J].

Jeon, Soon-Ok ;

Yook, Kyoung Soo ;

Joo, Chul Woong ;

Lee, Jun Yeob ;

Ko, Kwang-Youn ;

Park, Jong-Yek ;

Baek, Yong Gu .

APPLIED PHYSICS LETTERS, 2008, 93 (06)

[7] Highly efficient bilayer green phosphorescent organic light emitting devices [J].

Jeon, Woo Sik ;

Park, Tae Jin ;

Park, Jung Joo ;

Kim, Sun Young ;

Jang, Jin ;

Kwon, Jang Hyuk ;

Pode, Ramchandra .

APPLIED PHYSICS LETTERS, 2008, 92 (11)

[8]

Jeong KU, 2001, J APPL POLYM SCI, V80, P1198, DOI 10.1002/app.1204.abs

[9] High efficiency phosphorescent organic light-emitting diodes using carbazole-type triplet exciton blocking layer [J].

Kim, Sung Hyun ;

Jang, Jyongsik ;

Lee, Jun Yeob .

APPLIED PHYSICS LETTERS, 2007, 90 (22)

[10] Photovoltaic measurement of the built-in potential in organic light emitting diodes and photodiodes [J].

Malliaras, GG ;

Salem, JR ;

Brock, PJ ;

Scott, JC .

JOURNAL OF APPLIED PHYSICS, 1998, 84 (03) :1583-1587

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