August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【216】Local hydrophobicity on an oxide surface: In$_2$O$_3$(111)

Aug 31, 2021, 5:45 PM
Room C

Room C

Talk Surfaces, Interfaces and Thin Films Surfaces, Interfaces and Thin Films


Margareta Wagner (TU Wien)


Indium oxide is widely used in semiconductor industry but it also displays promising performance in electro- and photo catalytic reactions. In all applications, surrounding water molecules may influence chemical processes at the atomic scale, and understanding the interaction of water with In$_2$O$_3$ is important. We focus on In$_2$O$_3$(111), which has an intrinsically large unit cell composed of a hydrophilic and a hydrophobic area. We test the reactivity of these areas by unraveling the interfacial water structures for the whole range of water coverages in UHV, from single dissociated molecules to multilayers. Even at high coverages we clearly see hydrophilicity and hydrophobicity within the unit cell, both in experiments and calculations.

Primary authors

Hao Chen (E. O. Lawrence Berkeley National Laboratory) Matthias Blatnik (VUT v Brne) Michael Schmid (Institute of Applied Physics, TU Wien) Bernd Meyer (Friedrich-Alexander-Universitat Erlangen-Nurnberg) Ulrike Diebold (TU Wien) Margareta Wagner (TU Wien)

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