Small molecule interlayer for solution processed phosphorescent organic light emitting device

被引:68
作者
Park, Jung Joo [1 ]
Park, Tae Jin [1 ]
Jeon, Woo Sik [1 ]
Pode, Ramchandra [2 ]
Jang, Jin [1 ]
Kwon, Jang Hyuk [1 ]
Yu, Eun-Sun [3 ]
Chae, Mi-Young [3 ]
机构
[1] Kyung Hee Univ, Dept Informat Display, Seoul 130701, South Korea
[2] Kyung Hee Univ, Dept Phys, Seoul 130701, South Korea
[3] Cheil Ind Inc, Uiwang Si 3322, Gyeonggi Do, South Korea
关键词
Interlayer; Phosphorescent; Solution; OLED; HIGHLY EFFICIENT; POLYMER; DIODES; VOLTAGE;
D O I
10.1016/j.orgel.2008.08.014
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using a 4,4',4 ''-tris(N-carbazolyl)-triphenylamine (TCTA) small molecule interlayer, we have fabricated efficient green phosphorescent organic light emitting devices by solution process. Significantly a low driving voltage of 3.0 V to reach a luminance of 1000 cd/m(2) is reported in this device. The maximum current and power efficiency values of 27.2 cd/A and 17.8 lm/W with TCTA interlayer (thickness 30 nm) and 33.7 cd/A and 19.6 lm/W with 40 nm thick interlayer are demonstrated, respectively. Results reveal a way to fabricate the phosphorescent organic light emitting device using TCTA small molecule interlayer by solution process, promising for efficient and simple manufacturing. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:189 / 193
页数:5
相关论文
共 27 条
[1]   Built-in field electroabsorption spectroscopy of polymer light-emitting diodes incorporating a doped poly(3,4-ethylene dioxythiophene) hole injection layer [J].
Brown, TM ;
Kim, JS ;
Friend, RH ;
Cacialli, F ;
Daik, R ;
Feast, WJ .
APPLIED PHYSICS LETTERS, 1999, 75 (12) :1679-1681
[2]   Interface modification to improve hole-injection properties in organic electronic devices [J].
Choulis, SA ;
Choong, VE ;
Patwardhan, A ;
Mathai, MK ;
So, F .
ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (08) :1075-1080
[3]   The effect of interfacial layer on the performance of organic light-emitting diodes [J].
Choulis, SA ;
Choong, VE ;
Mathai, MK ;
So, F .
APPLIED PHYSICS LETTERS, 2005, 87 (11)
[4]   Efficient organic electrophosphorescent white-light-emitting device with a triple doped emissive layer [J].
D'Andrade, BW ;
Holmes, RJ ;
Forrest, SR .
ADVANCED MATERIALS, 2004, 16 (07) :624-+
[5]   Solution-processed organic light-emitting diodes for lighting [J].
Duagal, Anil R. ;
Heller, Christian M. ;
Shiang, Joseph J. ;
Liu, Jie ;
Lewis, Larry N. .
JOURNAL OF DISPLAY TECHNOLOGY, 2007, 3 (02) :184-192
[6]   Solution-processed full-color polymer organic light-emitting diode displays fabricated by direct photolithography [J].
Gather, Malte C. ;
Koehnen, Anne ;
Falcou, Aurelie ;
Becker, Heinrich ;
Meerholz, Klaus .
ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (02) :191-200
[7]   High-efficiency and low-voltage p-i-n electrophosphorescent organic light-emitting diodes with double-emission layers [J].
He, GF ;
Pfeiffer, M ;
Leo, K ;
Hofmann, M ;
Birnstock, J ;
Pudzich, R ;
Salbeck, J .
APPLIED PHYSICS LETTERS, 2004, 85 (17) :3911-3913
[8]   Molecular-scale interface engineering for polymer light-emitting diodes [J].
Ho, PKH ;
Kim, JS ;
Burroughes, JH ;
Becker, H ;
Li, SFY ;
Brown, TM ;
Cacialli, F ;
Friend, RH .
NATURE, 2000, 404 (6777) :481-484
[9]   Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layer [J].
Ikai, M ;
Tokito, S ;
Sakamoto, Y ;
Suzuki, T ;
Taga, Y .
APPLIED PHYSICS LETTERS, 2001, 79 (02) :156-158
[10]   Spin-cast thin semiconducting polymer interlayer for improving device efficiency of polymer light-emitting diodes [J].
Kim, JS ;
Friend, RH ;
Grizzi, I ;
Burroughes, JH .
APPLIED PHYSICS LETTERS, 2005, 87 (02)