Photovoltaic cell based on cadmium sulfide sprayed film and electrolytic poly(3-methylthiophene): Solvent nature effect

The electropolymerization of 3-methylthiophene into poly(3-methylthiophene) or PMeT, on A1 doped cadmium sulfide films allows a Schottky type junction to be formed whose rectification quality and photovoltaic response depend upon the electropolymerization parameters. Among these, the solvent nature...

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Bibliographic Details
Published in:Solar energy materials and solar cells 1993-07, Vol.30 (2), p.127-138
Main Authors: Nguyen Cong, H., Sene, C., Chartier, P.
Format: Article
Language:English
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Summary:The electropolymerization of 3-methylthiophene into poly(3-methylthiophene) or PMeT, on A1 doped cadmium sulfide films allows a Schottky type junction to be formed whose rectification quality and photovoltaic response depend upon the electropolymerization parameters. Among these, the solvent nature plays a determining role. In the case of propylene carbonate (PC), the dark saturation current, I s, of the CdS(A1): PMeT junction is about five times smaller than that obtained in the case of acetonitrile (MeCN). This indicates that the barrier height was modified, a result which was confirmed by impedance measurements. The barrier height variation is responsible for the dependence of the photovoltaic parameters of the CdS(A1): PMeT junction upon the nature of solvent which is used for the synthesis.
ISSN:0927-0248
1879-3398
DOI:10.1016/0927-0248(93)90014-T