Solution processed deep blue phosphorescent organic light-emitting diodes with over 20% external quantum efficiency

被引:66
作者
Yook, Kyoung Soo [1 ]
Lee, Jun Yeob [1 ]
机构
[1] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi Do, South Korea
关键词
Solution process; Deep blue device; High efficiency; High triplet energy host material; DEVICES; LAYER;
D O I
10.1016/j.orgel.2011.07.004
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Highly efficient solution processed deep blue phosphorescent organic light-emitting diodes (PHOLEDs) were developed using a solution processible high triplet energy host and deep blue dopant materials. Stable film morphology was observed from the spin coated deep blue emitting layer and a high quantum efficiency of 22.1% was achieved in the deep blue PHOLED with a color coordinate of (0.14, 0.19). (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:1711 / 1715
页数:5
相关论文
共 19 条
[1]   Highly efficient green-emitting phosphorescent iridium dendrimers based on carbazole dendrons [J].
Ding, JQ ;
Gao, J ;
Cheng, YX ;
Xie, ZY ;
Wang, LX ;
Ma, DG ;
Jing, XB ;
Wang, FS .
ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (04) :575-581
[2]   Solution-Processed Highly Efficient Blue Phosphorescent Polymer Light-Emitting Diodes Enabled by a New Electron Transport Material [J].
Earmme, Taeshik ;
Ahmed, Eilaf ;
Jenekhe, Samson A. .
ADVANCED MATERIALS, 2010, 22 (42) :4744-+
[3]   Dendrimer-containing light-emitting diodes:: Toward site-isolation of chromophores [J].
Freeman, AW ;
Koene, SC ;
Malenfant, PRL ;
Thompson, ME ;
Fréchet, JMJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (49) :12385-12386
[4]   Efficient single layer solution-processed blue-emitting electrophosphorescent devices based on a small-molecule host [J].
Hou, Liudong ;
Duan, Lian ;
Qiao, Juan ;
Li, Wei ;
Zhang, Deqiang ;
Qiu, Yong .
APPLIED PHYSICS LETTERS, 2008, 92 (26)
[5]   Improving the power efficiency of white light-emitting diode by doping electron transport material [J].
Huang, Jinsong ;
Hou, Wei-Jen ;
Li, Juo-Hao ;
Li, Gang ;
Yang, Yang .
APPLIED PHYSICS LETTERS, 2006, 89 (13)
[6]   External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light-Emitting Diodes [J].
Jeon, Soon Ok ;
Jang, Sang Eok ;
Son, Hyo Suk ;
Lee, Jun Yeob .
ADVANCED MATERIALS, 2011, 23 (12) :1436-1441
[7]   Phenylcarbazole-Based Phosphine Oxide Host Materials For High Efficiency In Deep Blue Phosphorescent Organic Light-Emitting Diodes [J].
Jeon, Soon Ok ;
Yook, Kyoung Soo ;
Joo, Chul Woong ;
Lee, Jun Yeob .
ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (22) :3644-3649
[8]   Novel star-shaped host materials for highly efficient solution-processed phosphorescent organic light-emitting diodes [J].
Jiang, Wei ;
Duan, Lian ;
Qiao, Juan ;
Zhang, Deqiang ;
Dong, Guifang ;
Wang, Liduo ;
Qiu, Yong .
JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (29) :6131-6137
[9]   High-efficiency blue organic light-emitting diodes using a 3,5-di(9H-carbazol-9-yl) tetraphenylsilane host via a solution-process [J].
Jou, Jwo-Huei ;
Wang, Wei-Ben ;
Chen, Sun-Zen ;
Shyue, Jing-Jong ;
Hsu, Mao-Feng ;
Lin, Cheng-Wei ;
Shen, Shih-Ming ;
Wang, Chun-Jan ;
Liu, Chi-Ping ;
Chen, Chin-Ti ;
Wu, Min-Fei ;
Liu, Shun-Wei .
JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (38) :8411-8416
[10]   Small molecule based and solution processed highly efficient red electrophosphorescent organic light emitting devices [J].
Kim, Heekyung ;
Byun, Younghun ;
Das, Rupasree Ragini ;
Choi, Byoung-Ki ;
Ahn, Pil-Soo .
APPLIED PHYSICS LETTERS, 2007, 91 (09)