High-efficiency red phosphorescent electroluminescence devices based on mixed p/n host matrices

被引：10

作者：

Duan, Y. ^{[1
]}

Mazzeo, M. ^{[1
]}

Cheng, G. ^{[1
]}

Mariano, F. ^{[1
]}

Gigli, G. ^{[1
]}

机构：

[1] CNR Ist Nanoscenze UOS, Natl Nanotechnol Lab, I-73100 Lecce, Italy

来源：

OPTICS LETTERS | 2010年 / 35卷 / 19期

基金：

中国国家自然科学基金;

关键词：

LIGHT-EMITTING-DIODES; IRIDIUM COMPLEX; EMISSION; LAYERS;

D O I：

10.1364/OL.35.003174

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter, we demonstrate a way to control the charge carrier transport mechanisms in phosphorescent organic light-emitting devices based on the mixing of two p and n host materials in the emissive layer (EML). The matrices have been selected in order to fulfill the requirements of the energy level mismatch with the transporting and emitting materials. By using the mixed-host approach in combination with a phosphorescent red emitter, namely (1-phenylisoquinoline) iridium (III) [Ir(piq)(3)], maximum external and power efficiencies of 14.3% and 10 lm/W, respectively, have been achieved, with an average external efficiency value of 12% in the luminance range 100-10,000 cd/m(2). (C) 2010 Optical Society of America

引用

页码：3174 / 3176

页数：3

共 16 条

[1] Highly efficient phosphorescent emission from organic electroluminescent devices [J].

Baldo, MA ;

O'Brien, DF ;

You, Y ;

Shoustikov, A ;

Sibley, S ;

Thompson, ME ;

Forrest, SR .

NATURE, 1998, 395 (6698) :151-154

[2] New iridium complexes as highly efficient orange-red emitters in organic light-emitting diodes [J].

Duan, JP ;

Sun, PP ;

Cheng, CH .

ADVANCED MATERIALS, 2003, 15 (03) :224-+

[3] Extremely low voltage and high bright p-i-n fluorescent white organic light-emitting diodes [J].

Duan, Y. ;

Mazzeo, M. ;

Maiorano, V. ;

Mariano, F. ;

Qin, D. ;

Cingolani, R. ;

Gigli, G. .

APPLIED PHYSICS LETTERS, 2008, 92 (11)

[4] High-efficiency organic electrophophorescent devices through balance of charge injection [J].

Jabbour, GE ;

Wang, JF ;

Peyghambarian, N .

APPLIED PHYSICS LETTERS, 2002, 80 (11) :2026-2028

[5] Ideal host and guest system in phosphorescent OLEDs [J].

Jeon, Woo Sik ;

Park, Tae Jin ;

Kim, Sun Young ;

Pode, Ramchandra ;

Jang, Jin ;

Kwon, Jang Hyuk .

ORGANIC ELECTRONICS, 2009, 10 (02) :240-246

[6] Highly efficient and stable red phosphorescent organic light-emitting device using bis[2-(2-benzothiazoyl)phenolato]zinc(II) as host material [J].

Kanno, Hiroshi ;

Ishikawa, Kaori ;

Nishio, Yoshitaka ;

Endo, Ayataka ;

Adachi, Chihaya ;

Shibata, Kenichi .

APPLIED PHYSICS LETTERS, 2007, 90 (12)

[7] Intermolecular interaction and a concentration-quenching mechanism of phosphorescent Ir(III) complexes in a solid film [J].

Kawamura, Y ;

Brooks, J ;

Brown, JJ ;

Sasabe, H ;

Adachi, C .

PHYSICAL REVIEW LETTERS, 2006, 96 (01)

[8] Bright organic electroluminescent devices having a metal-doped electron-injecting layer [J].

Kido, J ;

Matsumoto, T .

APPLIED PHYSICS LETTERS, 1998, 73 (20) :2866-2868

[9] High-efficiency, low-voltage phosphorescent organic light-emitting diode devices with mixed host [J].

Kondakova, Marina E. ;

Pawlik, Thomas D. ;

Young, Ralph H. ;

Giesen, David J. ;

Kondakov, Denis Y. ;

Brown, Christopher T. ;

Deaton, Joseph C. ;

Lenhard, Jerome R. ;

Klubek, Kevin P. .

JOURNAL OF APPLIED PHYSICS, 2008, 104 (09)

[10] Red phosphorescent iridium complex containing carbazole-functionalized β-diketonate for highly efficient nondoped organic light-emitting diodes [J].

Liu, Zhiwei ;

Guan, Min ;

Bian, Zuqiang ;

Nie, Daobo ;

Gong, Zeliang ;

Li, Zhaobo ;

Huang, Chunhui .

ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (11) :1441-1448

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