High-Efficiency Deep-Blue-Phosphorescent Organic Light-Emitting Diodes Using a Phosphine Oxide and a Phosphine Sulfide High-Triplet-Energy Host Material with Bipolar Charge-Transport Properties

被引：176

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 MATERIALS | 2010年 / 22卷 / 16期

关键词：

ELECTROPHOSPHORESCENT DEVICES;

D O I：

10.1002/adma.200903321

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 have been developed using bipolar-type high-triplet-energy host materials with a carbazole core and two phosphine oxide (PPO21) or phosphine sulfide (PPS21) units. A high quantum efficiency of 19.2% with a deep-blue color coordinate of (0.14,0.16) was achieved in the deep-blue device with PPO21 as a host material (see figure).

引用

页码：1872 / +

页数：6

共 18 条

[1] [Anonymous], ANGEW CHEM INT ED, DOI DOI 10.1002/ANGE.200800748
[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
Brunner, K
van Dijken, A
Börner, H
Bastiaansen, JJAM
Kiggen, NMM
Langeveld, BMW
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (19) : 6035 - 6042
[3] Role of the interfacial layer in the efficiency and lifetime of polymeric light emitting devices
Chin, Byung Doo
Kang, Nam Su
Yu, Jae-Woong
Jo, Seong Mu
Lee, Jun Yeob
[J]. JOURNAL OF APPLIED PHYSICS, 2007, 102 (02)
[4] En Route to High External Quantum Efficiency (∼12%), Organic True-Blue-Light-Emitting Diodes Employing Novel Design of Iridium (III) Phosphors
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
[J]. ADVANCED MATERIALS, 2009, 21 (21) : 2221 - +
[5] Erk P., 2006, SID Symp. Dig. Tech. Pap, V37, P131, DOI DOI 10.1889/1.2451401
[6] Blue organic electrophosphorescence using exothermic host-guest energy transfer
Holmes, RJ
Forrest, SR
Tung, YJ
Kwong, RC
Brown, JJ
Garon, S
Thompson, ME
[J]. APPLIED PHYSICS LETTERS, 2003, 82 (15) : 2422 - 2424
[7] Efficient, deep-blue organic electrophosphorescence by guest charge trapping
Holmes, RJ
D'Andrade, BW
Forrest, SR
Ren, X
Li, J
Thompson, ME
[J]. APPLIED PHYSICS LETTERS, 2003, 83 (18) : 3818 - 3820
[8] Phenylcarbazole-Based Phosphine Oxide Host Materials For High Efficiency In Deep Blue Phosphorescent Organic Light-Emitting Diodes
Jeon, Soon Ok
Yook, Kyoung Soo
Joo, Chul Woong
Lee, Jun Yeob
[J]. ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (22) : 3644 - 3649
[9] High efficiency blue phosphorescent organic light emitting diodes using a simple device structure
Jeon, Soon Ok
Yook, Kyoung Soo
Joo, Chul Woong
Lee, Jun Yeob
[J]. APPLIED PHYSICS LETTERS, 2009, 94 (01)
[10] Deep blue phosphorescent organic light-emitting diodes using a Si based wide bandgap host and an Ir dopant with electron withdrawing substituents
Kim, Sung Hyun
Jang, Jyongsik
Lee, Seok Jong
Lee, Jun Yeob
[J]. THIN SOLID FILMS, 2008, 517 (02) : 722 - 726

← 1 2 →