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Thin Solid Films, Vol.658, 66-72, 2018
Heteroepitaxial barium-doped NaTaO3 films on SrTiO3(001) substrate
Perovskite-structured NaTaO3 films were epitaxially deposited on centimeter-sized SrTiO3(001) wafers by hydrothermal and solvothermal reactions to examine the surface science for an efficient photocatalytic watersplitting reaction. The addition of Ba cations in the starting solutions afforded Ba-doped NaTaO3 films. X-ray fluorescence holography was employed to investigate and confirm the heteroepitaxial relationship between the Ba-doped film and substrate.
Keywords:Heteroepitaxy;Perovskite structure;Sodium tantalate;Doping with metal elements;X-ray fluorescence holography;Photocatalysis;Solar hydrogen;Artificial photosynthesis