High resolution synchrotron radiation PES study of PbPc deposited on Pt(111)

• We studied lead phthalocyanine (PbPc) films sublimated under UHV conditions on a clean Pt(111) substrate. We report results from high resolution photoelectron spectra of the Pb 5d, Ph 4f, C 1s, N 1s and Pt 4f core level using synchrotron radiation. Comparison between ultra thin films and thicker films shows that the first molecular adlayer interacts strongly with the substrate and we report evidence of Pb-Pt alloy formation on the surface. For the thick films, the C Is and N Is core level spectra show usual characteristics, however in the case of ultra thin films, we note important differences with respect to some previous results.

Nyckelord

organic-semiconductors

semiconducting thin films

lead phthalocyanine

metal-organic molecule interface

synchrotron radiation photoelectron spectroscopy

ray photoelectron-spectroscopy

copper phthalocyanine

lead-phthalocyanine

thin-films

si(111)-7x7

si(001)-2x1

surfaces

stm

xps

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