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Electronic structure of a vapor-deposited metal-free phthalocyanine thin film

  • Y Alfredsson
  • B Brena
  • K Nilson
  • J Ahlund
  • L Kjeldgaard
  • M Nyberg
  • Y Luo
  • Nils Mårtensson
  • Anders Sandell
  • C Puglia
  • H Siegbahn
Publiceringsår: 2005
Språk: Engelska
Publikation/Tidskrift/Serie: Journal of Chemical Physics
Volym: 122
Nummer: 21
Dokumenttyp: Artikel i tidskrift
Förlag: American Institute of Physics


The electronic structure of a vapor-sublimated thin film of metal-free phthalocyanine (H2Pc) is studied experimentally and theoretically. An atom-specific picture of the occupied and unoccupied electronic states is obtained using x-ray-absorption spectroscopy (XAS), core- and valence-level x-ray photoelectron spectroscopy (XPS), and density-functional theory (DFT) calculations. The DFT calculations allow for an identification of the contributions from individual nitrogen atoms to the experimental N1s XAS and valence XPS spectra. This comprehensive study of metal-free phthalocyanine is relevant for the application of such molecules in molecular electronics and provides a solid foundation for identifying modifications in the electronic structure induced by various substituent groups.


  • Natural Sciences
  • Physical Sciences


  • ISSN: 0021-9606

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