Abstract
Formation and properties of nickel doped TiO 2 films prepared by sol–gel method were studied using X-ray photoelectron spectroscopy, X-ray diffraction, atomic force microscopy, and energy dispersive X-ray analysis. The results demonstrate that sizes of TiO 2 crystallites increase with increasing heating temperature. Also, at temperatures above 800 ° C diffusion of nickel onto the surfaces results in increased concentrations of nickel compounds on the surfaces. Similar to pure TiO 2 films the light-induced modification of hydrophilicity is observed also in the case of nickel doped TiO 2 films.
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