Abstract
A new binder method for TiO 2 thin film photoanode preparation is proposed. The TiO 2 powder is first reduced in a hydrogen atmosphere, and the heterogeneous mixture, prepared from the reduced powder, is deposited on a metal substrate. Such a method gives the possibility for low cost fabrication of large area electrodes. The heterogeneous mixture consists of TiO 2 powder, a polymer as a binder and a conductive substance for decreasing the polymer resistivity. The influence of these components on the photoelectrochemical properties of TiO 2 layers is investigated, and an optimal ratio between the components is experimentally determined. The investigation revealed that the binder technology can be economically viable and attractive not only for TiO 2 thin film production but also for preparation of other electrodes from various n- and p-semiconducting materials.
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