Structure and electron states of Co-Phthalocyanine interacting with the Cu(111) surface

Correlation between the structure and the electronic properties of Co-Phtalocyanine on Cu(111).


E. Annese et al., J. Phys. Chem. C. 115, 17409 (2011)

We studied the growth and the electronic properties of Co-Phthalocyanine (CoPc) molecular layers on Cu(111). At monolayer coverage the molecules distribute uniformly on the Cu(111) surface with short range ordering. Angle dependent N 1s X-ray absorption spectroscopy (XAS) confirms the overall flat orientation. C 1s, N 1s, core-level photoemission and Co L3 edge XAS indicate selective participation of these atoms to the interface bonds. Angle resolved photoemission, for sub monolayer coverage shows that the Cu(111) surface states undergo a shift to lower binding energies. This binding energy shift and the increase in the effective mass indicate charge redistribution at CoPc/Cu(111) interface.

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J. Phys. Chem. C. 115, 17409 (2011)
Last Updated on Tuesday, 21 October 2014 11:46