Rectifying effect of heterojunction fabricated in freestanding thin film of polyaniline containing azobenzene side-chain |
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| Authors: | Yin Zhi-Hu Long Yun-Ze Huang Kun Wan Mei-Xiang and Chen Zhao-Jia |
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| Affiliation: | College of Physics Science, Qingdao University, Qingdao 266071, China; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China |
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| 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 (γ) being 20 at ±0.06 V at T= 77K
and 4 at ±0.02V at T=300 K separately. |
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| Keywords: | polyaniline rectifying effect azobenzene heterojunction |
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