External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light-Emitting Diodes

被引：383

作者：

Jeon, Soon Ok ^{[1
]}

Jang, Sang Eok ^{[1
]}

Son, Hyo Suk ^{[1
]}

Lee, Jun Yeob ^{[1
]}

机构：

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

来源：

ADVANCED MATERIALS | 2011年 / 23卷 / 12期

关键词：

PHOSPHINE OXIDE; HOST MATERIAL; ELECTROPHOSPHORESCENCE; COMPLEXES;

D O I：

10.1002/adma.201004372

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly efficient deep blue phosphorescent organic light-emitting diodes (PHOLEDs) with external quantum efficiency above 20% are developed using a bipolar-type high-triplet-energy host material and a high-triplet-energy exciton blocking material. Maximum quantum efficiency of 25.1% and low roll-off (still 23.1% at 1000 cd m-2) are achieved in these deep blue PHOLEDs. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：1436 / 1441

页数：6

共 24 条

[1] 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

[2] Transient analysis of organic electrophosphorescence. II. Transient analysis of triplet-triplet annihilation [J].

Baldo, MA ;

Adachi, C ;

Forrest, SR .

PHYSICAL REVIEW B, 2000, 62 (16) :10967-10977

[3] Highly efficient phosphorescent emission from organic electroluminescent devices [J].

Baldo, MA ;

O'Brien, DF ;

You, Y ;

Shoustikov, A ;

Sibley, S ;

Thompson, ME ;

Forrest, SR .

NATURE, 1998, 395 (6698) :151-154

[4] Ultraviolet electroluminescence and blue-green phosphorescence using an organic diphosphine oxide charge transporting layer [J].

Burrows, PE ;

Padmaperuma, AB ;

Sapochak, LS ;

Djurovich, P ;

Thompson, ME .

APPLIED PHYSICS LETTERS, 2006, 88 (18)

[5] Human behavior classification from MPEG compressed videos [J].

Chang, Chin-Chen ;

Han, Chin-Chuan ;

Lien, Chen-Chang ;

Chen, Ying-Nong ;

Lin, Yung-Chin .

OPTICAL ENGINEERING, 2008, 47 (02)

[6] Blue to True-Blue Phosphorescent IrIII Complexes Bearing a Nonconjugated Ancillary Phosphine Chelate: Strategic Synthesis, Photophysics, and Device Integration [J].

Chiu, Yuan-Chieh ;

Chi, Yun ;

Hung, Jui-Yi ;

Cheng, Yi-Ming ;

Yu, Ya-Chien ;

Chung, Ming-Wen ;

Lee, Gene-Hsiang ;

Chou, Pi-Tai ;

Chen, Chung-Chia ;

Wu, Chung-Chih ;

Hsieh, Hsi-Ying .

ACS APPLIED MATERIALS & INTERFACES, 2009, 1 (02) :433-442

[7] En Route to High External Quantum Efficiency (∼12%), Organic True-Blue-Light-Emitting Diodes Employing Novel Design of Iridium (III) Phosphors [J].

Chiu, Yuan-Chieh ;

Hung, Jui-Yi ;

Chi, Yun ;

Chen, Chung-Chia ;

Chang, Chih-Hao ;

Wu, Chung-Chih ;

Cheng, Yi-Ming ;

Yu, Ya-Chien ;

Lee, Gene-Hsiang ;

Chou, Pi-Tai .

ADVANCED MATERIALS, 2009, 21 (21) :2221-+

[8] High efficiency blue phosphorescent organic light-emitting device [J].

Chopra, Neetu ;

Lee, Jaewon ;

Zheng, Ying ;

Eom, Sang-Hyun ;

Xue, Jiangeng ;

So, Franky .

APPLIED PHYSICS LETTERS, 2008, 93 (14)

[9]

Erk P., 2006, SID Symp. Dig. Tech. Pap, V37, P131, DOI DOI 10.1889/1.2451401

[10] Saturated deep blue organic electrophosphorescence using a fluorine-free emitter [J].

Holmes, RJ ;

Forrest, SR ;

Sajoto, T ;

Tamayo, A ;

Djurovich, PI ;

Thompson, ME ;

Brooks, J ;

Tung, YJ ;

D'Andrade, BW ;

Weaver, MS ;

Kwong, RC ;

Brown, JJ .

APPLIED PHYSICS LETTERS, 2005, 87 (24) :1-3

← 1 2 3 →