Display options
Cite
Setvin M, Daniel B, Aschauer U, et al. Identification of adsorbed molecules via STM tip manipulation: CO, H₂O, and O₂ on TiO₂ anatase (101). Phys Chem Chem Phys. 2014;16(39):21524-30doi: 10.1039/c4cp03212h.
Setvin, M., Daniel, B., Aschauer, U., Hou, W., Li, Y. F., Schmid, M., Selloni, A., & Diebold, U. (2014). Identification of adsorbed molecules via STM tip manipulation: CO, H₂O, and O₂ on TiO₂ anatase (101). Physical chemistry chemical physics : PCCP, 16(39), 21524-30. https://doi.org/10.1039/c4cp03212h
Setvin, Martin, et al. "Identification of adsorbed molecules via STM tip manipulation: CO, H₂O, and O₂ on TiO₂ anatase (101)." Physical chemistry chemical physics : PCCP vol. 16,39 (2014): 21524-30. doi: https://doi.org/10.1039/c4cp03212h
Setvin M, Daniel B, Aschauer U, Hou W, Li YF, Schmid M, Selloni A, Diebold U. Identification of adsorbed molecules via STM tip manipulation: CO, H₂O, and O₂ on TiO₂ anatase (101). Phys Chem Chem Phys. 2014 Oct 21;16(39):21524-30. doi: 10.1039/c4cp03212h. Epub 2014 Sep 04. PMID: 25186563.
Copy Download .nbib Format: NLM
Share it on

Phys Chem Chem Phys. 2014 Oct 21;16(39):21524-30. doi: 10.1039/c4cp03212h. Epub 2014 Sep 04.

Identification of adsorbed molecules via STM tip manipulation: CO, H₂O, and O₂ on TiO₂ anatase (101).

Physical chemistry chemical physics : PCCP

Martin Setvin, Benjamin Daniel, Ulrich Aschauer, Weiyi Hou, Ye-Fei Li, Michael Schmid, Annabella Selloni, Ulrike Diebold

Affiliations

  1. Institute of Applied Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10/134, 1040 Wien, Austria. [email protected].

PMID: 25186563 DOI: 10.1039/c4cp03212h

Abstract

While Scanning Tunneling Microscopy (STM) has evolved as an ideal tool to study surface chemistry at the atomic scale, the identification of adsorbed species is often not straightforward. This paper describes a way to reliably identify H2O, CO and O2 on the TiO2 anatase (101) surface with STM. These molecules are of a key importance in the surface chemistry of this and many other (photo-) catalytic materials. They exhibit a wide variety of contrasts in STM images, depending on the tip condition. With clean, metallic tips the molecules appear very similar, i.e., as bright, dimer-like features located in the proximity of surface Ti5c atoms. However, each species exhibits a specific response to the electric field applied by the STM tip. It is shown that this tip-adsorbate interaction can be used to reliably ascertain the identity of such species. The tip-adsorbate interactions, together with comparison of experimental and calculated STM images, are used to analyse and revisit the assignments of molecular adsorbed species reported in recent studies.

Publication Types