Processes of reduction and oxidation of Transition Metal Oxides

Transition metal oxides with a tailored nonstoichiometry in the oxygen sublattice are recently of a high interest in all fields of material sciences. New phases formed on reduced oxide crystals or thin films possess interesting optoelectronic properties such as conductivity, absorption and fluorescence and are promising materials for the development of novel memristive and catalytic devices. In the presentation we will present an overview of reduction and oxidation methods enabling for a control of stoichiometry of prototypical binary and ternary oxides: TiO₂ and SrTiO₃, including electroreduction and thermal reduction under UHV conditions with additionally reduced oxygen partial pressure.