Journal
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
Volume 174, Issue 1-3, Pages 59-64Publisher
ELSEVIER
DOI: 10.1016/j.elspec.2009.03.023
Keywords
Tin-phthalocyanine; Metal-organic interface; High-resolution photoelectron spectroscopy; Work function; Interaction; Chemisorption
Categories
Funding
- EU
- DFG [1221]
- Fond der Chemischen Industrie
Ask authors/readers for more resources
We study the electronic structure of tin-phthalocyanine (SnPc) molecules adsorbed on a Ag(1 1 1) surface by high-resolution photoelectron spectroscopy. We particularly address the effect of different SnPc coverages on the interaction and charge transfer at the interface. The results give evidence for a covalent molecule-substrate interaction, which is temperature and coverage dependent. The valence and core level spectra as well as the work function measurements allow us monitoring subtle differences in the strength of the interface interaction, thus demonstrating the sensitivity of the methods. The results consistently show the effect of charge exchange between substrate and molecules which obviously leads to a net charge transfer into the SnPc molecules, and which is increased with decreasing coverage. Surprisingly, the Sn3d core levels are neither effected by variations of charge transfer and interaction strength, nor by a possible Sn-up or Sn-down orientation, which have been observed for sub-monolayers. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available