中国物理B ›› 1997, Vol. 6 ›› Issue (12): 921-926.doi: 10.1088/1004-423X/6/12/006

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ELECTROLUMINESCENCE OF POLYMER DOPED WITH TRIPHENYL-2-PYRAZOLINE

李述汤1, 陈立春2, 董树忠3, 孙恒慧3, 王迅3, 邓振波4   

  1. (1)Department of Physics and Materials Science, City University of Hong Kong , Hong Kong; (2)Institute of Material Physics, Tianjin Institute of Technology, Tianjin 300072, China; (3)State Key Laboratory of Surface Physics and T .D.Lee Physics Laboratory, Fudan University,Shanghai 200433,China; (4)State Key Laboratory of Surface Physics and T .D.Lee Physics Laboratory, Fudan University,Shanghai 200433,China; Department of Physics and Materials Science, City University of Hong Kong , Hong Kong
  • 收稿日期:1997-01-28 出版日期:1997-12-20 发布日期:1997-12-20
  • 基金资助:
    Project supported by the Postdoctoral Foundation of China.

ELECTROLUMINESCENCE OF POLYMER DOPED WITH TRIPHENYL-2-PYRAZOLINE

DENG ZHEN-BO (邓振波)ab, S.T.LEE (李述汤)b, CHEN LI-CHUN (陈立春)c, DONG SHU-ZHONG (董树忠)a, SUN HENG-HUI (孙恒慧)a, WANG XUN (王迅)a   

  1. a State Key Laboratory of Surface Physics and T .D.Lee Physics Laboratory, Fudan University,Shanghai 200433,China; b Department of Physics and Materials Science, City University of Hong Kong , Hong Kong; c Institute of Material Physics, Tianjin Institute of Technology, Tianjin 300072, China
  • Received:1997-01-28 Online:1997-12-20 Published:1997-12-20
  • Supported by:
    Project supported by the Postdoctoral Foundation of China.

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摘要： Poly-phenylquinoxaline is used as the electroluminescent( EL) materials to fabricate the thin film electroluminescent devices by the spin coating method. Doped with 1,3,5-triphenyl-2-pyrazoline,the EL spectrum of the devices is shifted to the blue-green region with its peak located at 465nm. The incorporation of a hole transport layer,poly-vinylcarbazole,will enhance the EL intensity,and the quantum efficiency is estimated to be 0.2%. Thus,the devices can be driven by either positive or negative bias(or ac voltage) even though the currentvoltage curve possesses a rectifying property.

Abstract: Poly-phenylquinoxaline is used as the electroluminescent( EL) materials to fabricate the thin film electroluminescent devices by the spin coating method. Doped with 1,3,5-triphenyl-2-pyrazoline,the EL spectrum of the devices is shifted to the blue-green region with its peak located at 465nm. The incorporation of a hole transport layer,poly-vinylcarbazole,will enhance the EL intensity,and the quantum efficiency is estimated to be 0.2%. Thus,the devices can be driven by either positive or negative bias(or ac voltage) even though the currentvoltage curve possesses a rectifying property.

中图分类号:  (Electroluminescence)

  • 78.60.Fi
85.60.Jb (Light-emitting devices) 81.15.-z (Methods of deposition of films and coatings; film growth and epitaxy) 68.55.Ln (Defects and impurities: doping, implantation, distribution, concentration, etc.) 68.55.-a (Thin film structure and morphology) 78.55.Kz (Solid organic materials)