Kelvin probe force microscopy work function characterization of transition metal oxide crystals under ongoing reduction and oxidation

• Dominik Wrana,
• Karol Cieślik,
• Wojciech Belza,
• Christian Rodenbücher,
• Krzysztof Szot and
• Franciszek Krok

Beilstein J. Nanotechnol. 2019, 10, 1596–1607, doi:10.3762/bjnano.10.155

• . Keywords: Kelvin probe force microscopy (KPFM); reduction and oxidation; SrTiO3; TiO nanowires; TiO/SrTiO3 heterostructure; transition metal oxides; work function; Introduction Transition metal oxides are viewed today as some of the most promising materials in various fields, ranging from (photo)catalysis

• domains A and B. h) STM topography showing the concurrent presence of A and B domains, with defects marked in black. Influence of air exposure on the TiO/SrTiO3 work function. a) KPFM topography and work function of a TiO/SrTiO3 heterostructure (Δf = −40 Hz) after reduction (first row), exposed to ambient