Improvements in lifetime of CdSe photoanodes by partially reduced polypirrole films

Agostino Pennisi; Francesca Simone

doi:10.1117/12.20435

1 August 1990 Improvements in lifetime of CdSe photoanodes by partially reduced polypirrole films

Agostino Pennisi, Francesca Simone

Proceedings Volume 1272, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IX; (1990) https://doi.org/10.1117/12.20435
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

In the present paper results obtained in photoelectrochemical (PEC) cells are presented. Electrochemically deposited CdSe photoanodes, covered by reduced polypirrole films have been studied. In particular, polypirrole was polymerized through an electrodeposition technique utilizing oxidation and reduction cycles. This procedure allows to obtain conducting polymer films with optical characteristics more suitable to the employement in PEC cells. Both CdSe and polypirrole films have been characterized utilizing several experimental techniques, mainly in order to determine their cristallograpliic properties and their uniformity. The morphology of polycrystalline CdSe films was widely studied with scanning electron microscopy (SEM) and X-ray diffraction. The behavior of current flowing in the cell versus time for CdSe electrodes covered by polymer films was analyzed. A good evidence for a protectioii effect is given.

Citation Download Citation

Agostino Pennisi and Francesca Simone "Improvements in lifetime of CdSe photoanodes by partially reduced polypirrole films", Proc. SPIE 1272, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IX, (1 August 1990); https://doi.org/10.1117/12.20435

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