Affordable Access

Publisher Website

Metal vapor deposition on carbon; an XPS study of Pd and Au cluster growth

Authors
Journal
Surface Science
0039-6028
Publisher
Elsevier
Publication Date
Volume
162
Identifiers
DOI: 10.1016/0039-6028(85)90974-4

Abstract

Abstract Small Pd and Au clusters were grown on carbon by metal vapor deposition under UHV conditions. The cluster growth was followed by XPS. Changes of lineshape and binding energy of core level peaks were followed in a wide range of cluster sizes. Analysis of the results showed that core levels from well-defined particles exhibit a quasi-symmetrical shape in agreement with change of relaxation energy induced by size effects. Gold core levels showed evidence of this interpretation as their asymmetry could be explained by size dispersion of gold clusters only. We followed also the change of the intensity ratio of two photoemission peaks of the deposited metal versus the cluster size. This method could be easily applied for size evaluation to various supports or even powders.

There are no comments yet on this publication. Be the first to share your thoughts.