Abstract
With the aim of obtaining TiO2 films with increased photoresponse titanium metal was alloyed with bismuth and then directly oxidized. The free energy efficiencies of the Ti-Bi oxide increased four times by increasing the bismuth content up to 10 wt %. The spectral response of the Ti -Bi oxides was slightly shifted toward the visible region with respect to the response of TiO2, and their E g were observed to be in the range 2.87–3.0 eV.
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Park, S.Y., Cho, B.W., Yun, K.S. et al. Photoelectrochemical properties of bismuth-doped titanium oxide electrodes. J Appl Electrochem 24, 1133–1138 (1994). https://doi.org/10.1007/BF00241311
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DOI: https://doi.org/10.1007/BF00241311