Abstract
Nanostructured TiO2 films were prepared by a one-step soaking method, which has many advantages, such as simple fabrication, a short reaction time, and fast growth. We have investigated the growth of TiO2 films by the substrate orientation of the soaking method, which had an effect on the nanostructure of the TiO2 films. The TiO2 films prepared by this method had various structures: particulate-flat structure and sphere-flat structure. To determine the effect of the nanostructure of TiO2 films on the photovoltaic characteristics of solar cells, solar cell devices using the inorganic semiconductor Sb2S3 as a sensitizer were fabricated by chemical bath deposition (CBD). Our solar cell device, using TiO2 film with a sphere-flat structure as a photoelectrode, exhibited JSC, VOC, FF, and η values of 11.82 mA / cm2, 0.49 V, 30.27 %, and 1.74 %, respectively.
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