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Verhandlungen
Verhandlungen
DPG

Regensburg 2016 – scientific programme

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DS: Fachverband Dünne Schichten

DS 12: Postersession DS

DS 12.18: Poster

Monday, March 7, 2016, 17:00–19:00, Poster A

Influence of Graphene on Charge Transfer between CoPc and Metals: The Role of Graphene-Substrate CouplingJohannes Uihlein1, Małgorzata Polek1, Mathias Glaser1, Hilmar Adler1, David Balle1, Ruslan Ovsyannikov2, •Milutin Ivanovic Ivanovic1, Alexei B. Preobrajenski3, Alexander V. Generalov3, Thomas Chassé1, and Heiko Peisert11University of Tübingen, Institute of Physical and Theoretical Chemistry, 72076 Tübingen, Germany — 2Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489 Berlin, Germany — 3Lund University, MAX-Laboratory, 22100 Lund, Sweden

The electronic structure of cobalt phthalocyanine (CoPc) on Pt(111), graphene/Pt(111) and Au-intercalated graphene/Ni(111) is investigated by photoemission and X-ray absorption spectroscopy. For CoPc on metal substrates, significant changes of the shape of the spectra indicate a charge transfer from the substrate to the Co ion of CoPc. The disturbance of the graphene electronic structure by interaction with underlying substrate accompanied by a doping of graphene has been found to affect electronic properties of adsorbed CoPc considerably.

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