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High efficiency phosphorescent organic light emitting diodes using triplet quantum well structure

被引：44
作者：
Kim, Sung Hyun
Jang, Jyongsik
Hong, Jae-Min
Lee, Jun Yeob
机构：
[1] Dankook Univ, Dept Polymer Sci & Engn, Seoul 140714, South Korea
[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151742, South Korea
[3] Korea Inst Sci & Technol, Opto Elect Mat Res Ctr, Seoul 130650, South Korea
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 17期
关键词：
D O I：
10.1063/1.2731435
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Light emission in phosphorescent quantum well structure which can confine excitons within an emitting layer was investigated. A multilayer quantum well structure which has a narrow triplet band gap host material sandwiched between wide triplet band gap host materials was designed, and device performances were studied. The multilayer emitting structure gave high efficiency of 47 cd/A compared with 11 cd/A of standard green devices. (c) 2007 American Institute of Physics.
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页数：3
相关论文
共 17 条
[11]  
Okumoto K, 2003, CHEM MATER, V15, P699, DOI [10.1021/cm020849+, 10.1021/cm020849]
[12]   Organic light-emitting diodes with improved hole-electron balance by using copper phthalocyanine/aromatic diamine multiple quantum wells [J].
Qiu, Y ;
Gao, YD ;
Wei, P ;
Wang, LD .
APPLIED PHYSICS LETTERS, 2002, 80 (15) :2628-2630
[13]   High-efficiency organic light-emitting diodes with tunable light emission by using aromatic diamine/5,6,11,12-tetraphenylnaphthacene multiple quantum wells [J].
Qiu, Y ;
Gao, YD ;
Wang, LD ;
Wei, P ;
Duan, L ;
Zhang, DQ ;
Dong, GF .
APPLIED PHYSICS LETTERS, 2002, 81 (19) :3540-3542
[14]   Physical mechanisms in double-carrier trap-charge limited transport processes in organic electroluminescent devices: A numerical study [J].
Shen, J ;
Yang, J .
JOURNAL OF APPLIED PHYSICS, 1998, 83 (12) :7706-7714
[15]   Nonconjugated hybrid of carbazole and fluorene: A novel host material for highly efficient green and red phosphorescent OLEDs [J].
Wong, KT ;
Chen, YM ;
Lin, YT ;
Su, HC ;
Wu, CC .
ORGANIC LETTERS, 2005, 7 (24) :5361-5364
[16]   Doping effects in organic electroluminescent devices [J].
Yang, J ;
Shen, J .
JOURNAL OF APPLIED PHYSICS, 1998, 84 (04) :2105-2111
[17]   High-efficiency electrophosphorescent organic light-emitting diodes with double light-emitting layers [J].
Zhou, X ;
Qin, DS ;
Pfeiffer, M ;
Blochwitz-Nimoth, J ;
Werner, A ;
Drechsel, J ;
Maennig, B ;
Leo, K ;
Bold, M ;
Erk, P ;
Hartmann, H .
APPLIED PHYSICS LETTERS, 2002, 81 (21) :4070-4072
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