中国物理B ›› 2009, Vol. 18 ›› Issue (1): 298-302.doi: 10.1088/1674-1056/18/1/048

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Rectifying effect of heterojunction fabricated in freestanding thin film of polyaniline containing azobenzene side-chain

尹志华1, 龙云泽1, 黄琨2, 万梅香2, 陈兆甲3   

  1. (1)College of Physics Science, Qingdao University, Qingdao 266071, China; (2)Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (3)Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2008-05-15 修回日期:2008-08-12 出版日期:2009-01-20 发布日期:2009-01-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10604038) and the Program for New Century Excellent Talents in University, China (Grant No NCET-07-0472).

Rectifying effect of heterojunction fabricated in freestanding thin film of polyaniline containing azobenzene side-chain

Yin Zhi-Hua(尹志华)a), Long Yun-Ze(龙云泽)a)†, Huang Kun(黄琨)b), Wan Mei-Xiang(万梅香)b), and Chen Zhao-Jia(陈兆甲)c)   

  1. a College of Physics Science, Qingdao University, Qingdao 266071, China; b Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; c Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2008-05-15 Revised:2008-08-12 Online:2009-01-20 Published:2009-01-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10604038) and the Program for New Century Excellent Talents in University, China (Grant No NCET-07-0472).

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摘要： An innovative heterojunction is fabricated between two sides of a freestanding thin film of HCl-doped polyaniline (PANI) derivative containing azobenzene side-chain, which is synthesized through an N-alkyl-substituted reaction. Of the film, the side with being irradiated by UV light during preparation is represented as `A side'; the other side without being irradiated is represented as `N side'. The electrical properties of the heterojunction are measured and the rectifying effect is observed in the {current--voltage} characteristic curves with the values of rectifying ratio (γ) being 20 at ±0.06 V at T= 77K and 4 at ±0.02V at T=300 K separately.

关键词: polyaniline, rectifying effect, azobenzene, heterojunction

Abstract: An innovative heterojunction is fabricated between two sides of a freestanding thin film of HCl-doped polyaniline (PANI) derivative containing azobenzene side-chain, which is synthesized through an N-alkyl-substituted reaction. Of the film, the side with being irradiated by UV light during preparation is represented as `A side'; the other side without being irradiated is represented as `N side'. The electrical properties of the heterojunction are measured and the rectifying effect is observed in the {current--voltage} characteristic curves with the values of rectifying ratio ($\gamma$) being 20 at ±0.06 V at T= 77K and 4 at ±0.02V at T=300 K separately.

Key words: polyaniline, rectifying effect, azobenzene, heterojunction

中图分类号:  (Rectification)

  • 73.40.Ei
61.80.Ba (Ultraviolet, visible, and infrared radiation effects (including laser radiation)) 81.05.Lg (Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials)