Publications in Scientific Journals:

S. Gerhold, M. Riva, Z. Wang, R. Bliem, M. Wagner, J. Osiecki, K. Schulte, M. Schmid, U. Diebold:
"Nickel-Oxide-Modified SrTiO3(110)-(4 1) Surfaces and Their Interaction with Water
Journal of Physical Chemistry C, 119 (2015), 20481 - 20487.

English abstract:
Nickel oxide (NiO), deposited onto the strontium titanate (SrTiO3) (110)-(4 1) surface, was studied using photoemission spectroscopy (PES), X-ray absorption near edge structure (XANES), and low-energy He+ ion scattering (LEIS), as well as scanning tunneling microscopy (STM). The main motivation for studying this system comes
from the prominent role it plays in photocatalysis. The (4 1) reconstructed SrTiO3(110) surface was previously found to be remarkably inert toward water adsorption under ultrahigh-vacuum conditions. Nickel oxide grows on this surface as patches without any apparent ordered structure. PES and LEIS reveal an upward band bending, a reduction of the band gap, and reactivity toward water adsorption upon deposition of NiO. Spectroscopic results are discussed
with respect to the enhanced reactivity toward water of the NiO-loaded surface.

Created from the Publication Database of the Vienna University of Technology.