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

Research output: Contribution to journalArticle

Abstract

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.

Details

Authors
  • Y Alfredsson
  • B Brena
  • K Nilson
  • J Ahlund
  • L Kjeldgaard
  • M Nyberg
  • Y Luo
  • Nils Mårtensson
  • Anders Sandell
  • C Puglia
  • H Siegbahn
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Natural Sciences
  • Physical Sciences
Original languageEnglish
JournalJournal of Chemical Physics
Volume122
Issue number21
Publication statusPublished - 2005
Publication categoryResearch
Peer-reviewedYes