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)
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
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.
Received: 15 May 2008
Revised: 12 August 2008
Accepted manuscript online:
(Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials)
Fund: 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).
Cite this article:
Yin Zhi-Hua(尹志华), Long Yun-Ze(龙云泽), Huang Kun(黄琨), Wan Mei-Xiang(万梅香), and Chen Zhao-Jia(陈兆甲) Rectifying effect of heterojunction fabricated in freestanding thin film of polyaniline containing azobenzene side-chain 2009 Chin. Phys. B 18 298
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
