X-ray photoelectron spectroscopy of low surface concentration mass-selected Ag clusters

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Low surface concentrations of mass-selected clusters deposited under ultra high vacuum conditions on a well-characterized surface were studied with XPS. Analysis of monomers and dimers deposited at low temperature in a thick Xe buffer layer indicates the mobility and aggregation of the clusters in such a film. A stable average cluster size is reached at 53 K that is likely to be the same for all initially deposited cluster sizes studied in the range Ag1-Ag5. Cluster aggregation progresses as the temperature is raised, tending toward the formation of metallic islands at high temperatures.


  • James N. O'Shea
  • Joachim Schnadt
  • Staffan Andersson
  • Luc Patthey
  • Steffen Rost
  • Annika Giertz
  • Barbara Brena
  • Jan Olof Forsell
  • Anders Sandell
  • Olle Björneholm
  • Paul A. Brühwiler
  • Nils Mårtensson
Externa organisationer
  • Uppsala universitet, Historiska institutionen
  • Paul Scherrer Institute
Sidor (från-till)9233-9238
Antal sidor6
TidskriftJournal of Chemical Physics
StatusPublished - 2000 nov 1
Peer review utfördJa
Externt publiceradJa