Photoelectropolymerization of aniline in a dye-sensitized solar cell. |
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Authors: | Hooi-Sung Kim Carl C Wamser |
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Institution: | Department of Chemistry, Portland State University, Portland, Oregon, USA97207-0751. wamserc@pdx.edu. |
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Abstract: | A dye-sensitized solar cell was constructed using a porphyrin photosensitizer and, in place of the usual iodide redox system, a solution in aniline solvent containing lithium perchlorate electrolyte, camphorsulfonic acid, and poly(ethylene oxide) copolymer. Irradiation generated polyaniline within the cell, initially following a proposed photoelectropolymerization mechanism, and eventually operating as a solar cell with polyaniline as the hole transport medium. Overall energy conversion efficiency was 0.8% at moderate light intensities (14.6 mW cm(-2)) but lower at higher light intensities due to conductivity limitations. |
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