Highly efficient nondoped green organic light-emitting devices based on a substituted triphenylpyridine derivative

被引：15
作者：
Li, Na [1 ]
Lai, Shiu-Lun [2 ]
Wang, Pengfei [1 ]
Teng, Feng [3 ]
Liu, Zengtao [2 ]
Lee, Chun-Sing [2 ]
Lee, Shuit-Tong [2 ]
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China
[2] City Univ Hong Kong, COSDAF, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China
[3] Beijing Jiaotong Univ, Minist Educ, Inst Optoelect Technol, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 13期
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
ELECTROLUMINESCENCE; DIODES; AGGREGATION; EMISSION; COMPLEX;
D O I：
10.1063/1.3242000
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Highly efficient nondoped green organic light-emitting devices based on a triphenylpyridine derivative, 4-[4-(dimethylamino)phenyl]-2,6-diphenylnicotinonitrile (NPDPN), were fabricated and characterized. The double-organic-layer device with a structure of ITO/alpha-napthylphenylbiphenyl diamine /NPDPN/LiF/Al, in which NPDPN was used as both the emitter and the electron transporter, exhibits a green emission with Commission Internationale de L'Eclairage (CIE) coordinates of (0.23,0.52) and a power efficiency of 5.5 lm/W. The result is much better than that of similarly structured device based on tris(8-hydroxyquinoline)aluminum. Furthermore, a high current efficiency of 8.4 cd/A was achieved with an optimized device configuration. c 2009 American Institute of Physics. [doi:10.1063/1.3242000]
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页数：3
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共 22 条
[1]   KINETIC-STUDY OF THE HOMOLYTIC BROMINOLYSIS OF 1,2-DIARYLCYCLOPROPANES [J].
APPLEQUIST, DE ;
GDANSKI, RD .
JOURNAL OF ORGANIC CHEMISTRY, 1981, 46 (12) :2502-2510
[2]   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
[3]   Metal chelates as emitting materials for organic electroluminescence [J].
Chen, CH ;
Shi, JM .
COORDINATION CHEMISTRY REVIEWS, 1998, 171 :161-174
[4]   Organic light-emitting diodes based on a cohost electron transporting composite [J].
Fong, HH ;
Choy, WCH ;
Hui, KN ;
Liang, YJ .
APPLIED PHYSICS LETTERS, 2006, 88 (11)
[5]   Electroluminescence in conjugated polymers [J].
Friend, RH ;
Gymer, RW ;
Holmes, AB ;
Burroughes, JH ;
Marks, RN ;
Taliani, C ;
Bradley, DDC ;
Dos Santos, DA ;
Brédas, JL ;
Lögdlund, M ;
Salaneck, WR .
NATURE, 1999, 397 (6715) :121-128
[6]   Synthesis and characterization of perfluoroaryl-substituted siloles and thiophenes: A series of electron-deficient blue light emitting materials [J].
Geramita, Katharine ;
McBee, Jennifer ;
Shen, Yulong ;
Radu, Nora ;
Tilley, T. Don .
CHEMISTRY OF MATERIALS, 2006, 18 (14) :3261-3269
[7]   Direct evidence of molecular aggregation and degradation mechanism of organic light-emitting diodes under joule heating: an STM and photoluminescence study [J].
Gong, JR ;
Wan, LJ ;
Lei, SB ;
Bai, CL ;
Zhang, XH ;
Lee, ST .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (05) :1675-1682
[8]   Stable styrylamine-doped blue organic electroluminescent device based on 2-methyl-9,10-di(2-naphthyl)anthracene [J].
Lee, MT ;
Chen, HH ;
Liao, CH ;
Tsai, CH ;
Chen, CH .
APPLIED PHYSICS LETTERS, 2004, 85 (15) :3301-3303
[9]   Multifunctional platinum porphyrin dendrimers as emitters in undoped phosphorescent based light emitting devices [J].
Li, Yanqin ;
Rizzo, Aurora ;
Salerno, Marco ;
Mazzeo, Marco ;
Huo, Cheng ;
Wang, Yue ;
Li, Kechang ;
Cingolani, Roberto ;
Gigli, Giuseppe .
APPLIED PHYSICS LETTERS, 2006, 89 (06)
[10]   CYCLOCONDENSATION REACTIONS OF 3-ARYL-2-BENZYLIDENE-3-OXOPROPANENITRILES WITH ACETYLAROMATIC DERIVATIVES [J].
MARCHALIN, S ;
KUTHAN, J .
COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, 1985, 50 (08) :1862-1869
123