Synthesis and light-emitting properties of bipolar oligofluorenes containing triarylamine and 1,2,4-triazole moieties

被引:115
作者
Li, Zhong Hui
Wong, Man Shing
Fukutani, Hiroshi
Tao, Ye
机构
[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada
[2] Hong Kong Baptist Univ, Dept Chem, Hong Kong, Hong Kong, Peoples R China
[3] Hong Kong Baptist Univ, Ctr Adv Luminescence Mat, Hong Kong, Hong Kong, Peoples R China
关键词
D O I
10.1021/ol0615477
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A facile approach for synthesis of bipolar oligofluorenes, TAZ-OF(n)-NPh, n) 2 or 3 end-capped with hole-transporting diphenylamino and electron-transporting triazole moieties by Suzuki cross-coupling as the key reaction has been developed. This novel bipolar oligofluorenes exhibited blue-emission, high thermal and morphological stabilities. The single-layer OLED based on TAZ-OF(2)-NPh exhibited superior device performance with a maximum luminance of 1128 cd m(-2) and luminance efficiency of up to 0.83 cd A(-1).
引用
收藏
页码:4271 / 4274
页数:4
相关论文
共 42 条
[1]   MOLECULAR DESIGN OF HOLE TRANSPORT MATERIALS FOR OBTAINING HIGH DURABILITY IN ORGANIC ELECTROLUMINESCENT DIODES [J].
ADACHI, C ;
NAGAI, K ;
TAMOTO, N .
APPLIED PHYSICS LETTERS, 1995, 66 (20) :2679-2681
[2]   High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine)iridium doped into electron-transporting materials [J].
Adachi, C ;
Baldo, MA ;
Forrest, SR ;
Thompson, ME .
APPLIED PHYSICS LETTERS, 2000, 77 (06) :904-906
[4]   Weak microcavity effects in organic light-emitting devices [J].
Bulovic, V ;
Khalfin, VB ;
Gu, G ;
Burrows, PE ;
Garbuzov, DZ ;
Forrest, SR .
PHYSICAL REVIEW B, 1998, 58 (07) :3730-3740
[5]   Doubly ortho-linked quinoxaline/triarylamine hybrid as a bifunctional, dipolar electroluminescent template for optoelectronic applications [J].
Chen, CT ;
Lin, JS ;
Moturu, MVRK ;
Lin, YW ;
Yi, W ;
Tao, YT ;
Chien, CH .
CHEMICAL COMMUNICATIONS, 2005, (31) :3980-3982
[6]  
DEMAS JN, 1971, J PHYS CHEM-US, V75, P991, DOI 10.1021/j100678a001
[7]   Electron-transport properties and use in organic light-emitting diodes of a bis(dioxaborine)fluorene derivative [J].
Domercq, B ;
Grasso, C ;
Maldonado, JL ;
Halik, M ;
Barlow, S ;
Marder, SR ;
Kippelen, B .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (25) :8647-8651
[8]  
Grell M, 1999, ADV MATER, V11, P671, DOI 10.1002/(SICI)1521-4095(199906)11:8<671::AID-ADMA671>3.0.CO
[9]  
2-E
[10]   2,7-bis(diarylamino)-9,9-dimethylfluorenes as hole-transport materials for organic light-emitting diodes [J].
Hreha, RD ;
George, CP ;
Haldi, A ;
Domercq, B ;
Malagoli, M ;
Barlow, S ;
Brédas, JL ;
Kippelen, B ;
Marder, SR .
ADVANCED FUNCTIONAL MATERIALS, 2003, 13 (12) :967-973