Current-voltage characteristics of [formula omitted] complex films

Polypyrrole (PPy) films were prepared at different electropolymerization current densities on titanium dioxide (TiO 2) microporous films deposited on indium-tin oxide (ITO) substrates ( ITO TiO 2 ). Current-voltage ( I- V) characteristics of ITO/TiO 2/PPy/Al microporous diodes were measured, reveali...

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Bibliographic Details
Published in:Physics letters. A 1998, Vol.237 (3), p.165-168
Main Authors: Wang, Guangming, Chen, Hua, Zhang, Hong, Shen, Yaochun, Yuan, Chunwei, Lu, Zuhong, Wang, Guangmin, Yang, Weiyi
Format: Article
Language:English
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Summary:Polypyrrole (PPy) films were prepared at different electropolymerization current densities on titanium dioxide (TiO 2) microporous films deposited on indium-tin oxide (ITO) substrates ( ITO TiO 2 ). Current-voltage ( I- V) characteristics of ITO/TiO 2/PPy/Al microporous diodes were measured, revealing that the current density for electropolymerizing PPy affects not only the conductivity of PPy films but also the rectifying ratios for the ITO/TiO 2/PPy/Al diodes. An optimum current density for electropolymerizing PPy films corresponds to a potential close to the oxide potential.
ISSN:0375-9601
1873-2429
DOI:10.1016/S0375-9601(97)00837-2