Phenylcarbazole-Based Phosphine Oxide Host Materials For High Efficiency In Deep Blue Phosphorescent Organic Light-Emitting Diodes

被引：188

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, South Korea

来源：

ADVANCED FUNCTIONAL MATERIALS | 2009年 / 19卷 / 22期

关键词：

ELECTROPHOSPHORESCENT DEVICES; QUANTUM EFFICIENCY; ENERGY-GAP; COMPLEXES; OLEDS;

D O I：

10.1002/adfm.200901274

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 are developed using novel phenylcarbazole-based phosphine oxide host materials (PPO1 and PPO2). A deep blue phosphorescent dopant, tris((3,5- difluoro-4-cyanophenyl)pyridine) iridium, is doped into PPO1 and PPO2 at a doping concentration of 15% and a high quantum efficiency of 18.4% is obtained with color coordinates of (0.14, 0.15).

引用

页码：3644 / 3649

页数：6

共 21 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] Carbazole compounds as host materials for triplet emitters in organic light-emitting diodes:: Tuning the HOMO level without influencing the triplet energy in small molecules [J].

Brunner, K ;

van Dijken, A ;

Börner, H ;

Bastiaansen, JJAM ;

Kiggen, NMM ;

Langeveld, BMW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (19) :6035-6042

[3] Highly efficient blue-emitting iridium(III) carbene complexes and phosphorescent OLEDs [J].

Chang, Chiung-Fang ;

Cheng, Yi-Ming ;

Chi, Yun ;

Chiu, Yuan-Chieh ;

Lin, Chao-Chen ;

Lee, Gene-Hsiang ;

Chou, Pi-Tai ;

Chen, Chung-Chia ;

Chang, Chih-Hao ;

Wu, Chung-Chih .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (24) :4542-4545

[4] Role of the interfacial layer in the efficiency and lifetime of polymeric light emitting devices [J].

Chin, Byung Doo ;

Kang, Nam Su ;

Yu, Jae-Woong ;

Jo, Seong Mu ;

Lee, Jun Yeob .

JOURNAL OF APPLIED PHYSICS, 2007, 102 (02)

[5] 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-+

[6]

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

[7] 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

[8] Blue organic electrophosphorescence using exothermic host-guest energy transfer [J].

Holmes, RJ ;

Forrest, SR ;

Tung, YJ ;

Kwong, RC ;

Brown, JJ ;

Garon, S ;

Thompson, ME .

APPLIED PHYSICS LETTERS, 2003, 82 (15) :2422-2424

[9] Efficient, deep-blue organic electrophosphorescence by guest charge trapping [J].

Holmes, RJ ;

D'Andrade, BW ;

Forrest, SR ;

Ren, X ;

Li, J ;

Thompson, ME .

APPLIED PHYSICS LETTERS, 2003, 83 (18) :3818-3820

[10] Deep blue phosphorescent organic light-emitting diodes using a Si based wide bandgap host and an Ir dopant with electron withdrawing substituents [J].

Kim, Sung Hyun ;

Jang, Jyongsik ;

Lee, Seok Jong ;

Lee, Jun Yeob .

THIN SOLID FILMS, 2008, 517 (02) :722-726

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