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Oxidation of Anatase TiO2(001) Surface Using Supersonic Seeded Oxygen Molecular Beam
Daiki Katsube1, Shinya Ohno2, Shuhei Takayanagi2
1Department of Electrical, Electronics and Information Engineering, Nagaoka University of Technology, 1603-1 Kamitomiokamachi, Nagaoka, Niigata 940-2188, Japan.
Abstract:
We investigated the oxidation of oxygen vacancies at the surface of anatase TiO2(001) using a supersonic seeded molecular beam (SSMB) of oxygen. The oxygen vacancies at the top surface and subsurface could be eliminated by the supply of oxygen using an SSMB. Oxygen vacancies are present on the surface of anatase TiO2(001) when it is untreated before transfer to a vacuum chamber. These vacancies, which are stable in the as-grown condition, could also be effectively eliminated by using the oxygen SSMB.
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