Abstract
Sb2S3-sensitized TiO2 films were prepared with chemical bath deposition (CBD) method. The influences of acetone and acetic acid solvents on the morphologies of Sb2S3-sensitized TiO2 films and their light absorbing ability were investigated. Furthermore, photoelectrochemical solar cells containing Sb2S3-sensitized TiO2 photoanodes, polyaniline, and Pt counter electrodes were prepared to investigate the photovoltaic performance of these Sb2S3-sensitized TiO2 films. It was found that the Sb2S3-sensitized TiO2 photoanode prepared with CBD method in the solution containing acetic acid showed higher light absorption in short-wavelength region, lower charge transfer resistance and longer electron lifetime compared with that of the one prepared with CBD method in the solution containing acetone, resulting in better photovoltaic performance.
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