Du är här

Charge transfer between the Au(111) surface and adsorbed C-60: Resonant photoemission and new core-hole decay channels

Författare:
Publiceringsår: 2010
Språk: Engelska
Publikation/Tidskrift/Serie: Journal of Chemical Physics
Volym: 133
Nummer: 9
Dokumenttyp: Artikel
Förlag: Amer Inst Physics

Sammanfattning

The interaction of C-60 with the Au(111) surface has been investigated using synchrotron radiation-based electron spectroscopy. Resonant photoelectron spectroscopy and autoionization spectroscopy have been used to probe the coupling between the molecule and the substrate. Three distinct high energy spectator Auger features were observed that are only evident for a monolayer of C-60 chemisorbed to the Au (111) surface and not a multilayer or the clean surface itself. Combined with C 1s x-ray absorption and valence band spectra, the data suggest a decay process not previously reported for this system. This is a spectator decay channel involving electrons transferred from the gold substrate to the adsorbed molecule, either in the ground state or during the timescale of the core-hole lifetime. Both possibilities are considered in the interpretation of the results, which support, on balance, a ground state charge transfer. (C) 2010 American Institute of Physics. doi:10.1063/1.3488299

Disputation

Nyckelord

  • Chemistry
  • Physics and Astronomy
  • monolayers
  • molecule-surface impact
  • ground states
  • gold
  • fullerenes
  • chemisorption
  • autoionisation
  • charge transfer states
  • photoelectron spectroscopy
  • spectra
  • photoelectron

Övrigt

Published
Yes
  • ISSN: 0021-9606

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen

LERU logo U21 logo