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Excited-state charge transfer dynamics in systems of aromatic adsorbates on TiO2 studied with resonant core techniques

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Author

  • J Schnadt
  • JN O'Shea
  • L Patthey
  • L Kjeldgaard
  • J Ahlund
  • K Nilson
  • J Schiessling
  • J Krempasky
  • M Shi
  • O Karis
  • Chris Glover
  • H Siegbahn
  • Nils Mårtensson
  • PA Bruhwiler
Show all

Summary, in English

Resonant core spectroscopies are applied to a study of the excited electron transfer dynamics on a low-femtosecond time scale in systems of aromatic molecules (isonicotinic acid and bi-isonicotinic acid) adsorbed on a rutile TiO2(110) semiconductor surface. Depending on which adsorbate state is excited, the electron is either localized on the adsorbate in an excitonic effect, or delocalizes rapidly into the substrate in less than 5 fs (3 fs) for isonicotinic acid (bi-isonicotinic acid). The results are obtained by the application of a variant of resonant photoemission spectroscopy. (C) 2003 American Institute of Physics.

Department/s

Publishing year

2003

Language

English

Pages

12462-12472

Publication/Series

Journal of Chemical Physics

Volume

119

Issue

23

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Natural Sciences
  • Physical Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 0021-9606