Photoluminescence and electroluminescence of pyrazoline monomers and dimers

被引:60
作者
Zhang, XH
Lai, WY
Gao, ZQ
Wong, TC
Lee, CS
Kwong, HL
Lee, ST
Wu, SK
机构
[1] City Univ Hong Kong, COSDAF, Kowloon, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
[3] Acad Sinica, Inst Photog Chem, Beijing 100101, Peoples R China
[4] City Univ Hong Kong, Dept Biol & Chem, Hong Kong, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1016/S0009-2614(00)00213-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The photoluminescence (PL) and the electroluminescence (EL) behaviors of six derivatives of the pyrazoline dimer and monomer have been studied. It was found that the pyrazoline compounds with an aryl group attached to the 5-position of the pyrazoline ring have better film-forming property. Dimerization of the pyrazoline derivatives can improve the film-forming property while decrease the fluorescence yield. When these compounds were used in EL devices as fluorescence dopants in an N-arylbenzimidazoles trimer (TPBI), high efficiency EL was observed. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:77 / 80
页数:4
相关论文
共 8 条
[1]   Bright-blue electroluminescence from a silyl-substituted ter-(phenylene-vinylene) derivative [J].
Gao, ZQ ;
Lee, CS ;
Bello, I ;
Lee, ST ;
Chen, RM ;
Luh, TY ;
Shi, J ;
Tang, CW .
APPLIED PHYSICS LETTERS, 1999, 74 (06) :865-867
[2]   Blue organic electroluminescence of 1,3,5-triaryl-2-pyrazoline [J].
Gao, ZQ ;
Lee, CS ;
Bello, I ;
Lee, ST ;
Wu, SK ;
Yan, ZL ;
Zhang, XH .
SYNTHETIC METALS, 1999, 105 (02) :141-144
[3]  
HAMADA Y, 1995, JPN J APPL PHYS, V34, P824
[4]   FLUORESCENCE SPECTRAL STUDY OF WAVELENGTH SHIFTERS FOR SCINTILLATION PLASTICS [J].
SANDLER, SR ;
TSOU, KC .
JOURNAL OF CHEMICAL PHYSICS, 1963, 39 (04) :1062-&
[5]   PYRAZOLINE DIMERS FOR HOLE TRANSPORT MATERIALS IN ORGANIC ELECTROLUMINESCENT DEVICES [J].
SANO, T ;
FUJII, T ;
NISHIO, Y ;
HAMADA, Y ;
SHIBATA, K ;
KUROKI, K .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1995, 34 (6A) :3124-3127
[6]   ORGANIC ELECTROLUMINESCENT DIODES [J].
TANG, CW ;
VANSLYKE, SA .
APPLIED PHYSICS LETTERS, 1987, 51 (12) :913-915
[7]   A STUDY ON THE PHOTOPHYSICAL BEHAVIOR OF HINDERED TRIARYL-PYRAZOLINE COMPOUNDS [J].
Yan Zhenglin ;
Wu Shikang .
ACTA PHYSICO-CHIMICA SINICA, 1993, 9 (04) :556-560
[8]   ROTATIONAL RELAXATION OF PYRAZOLINE COMPOUNDS IN SOLUTION [J].
YANG, GQ ;
WU, SK .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1992, 66 (01) :69-77