Synchrotron radiation photoelectron spectroscopy study of Pb-Pc thin films on InSb(100)-(4x2)/c(8x2)

• The electronic properties and the thermal stability of a thin film of lead-phthalocyanine deposited on the InSb(100)-(4 x 2)/c(8 x 2) surface were studied by synchrotron radiation core level and valence band photoelectron spectroscopy. The interaction between the overlayer and the substrate was determined by analyzing the photoemission spectra of a thin film and of a single monolayer of adsorbed molecules. Subsequently the monolayer was annealed at increasing temperatures, leading first to a gradual change of the oxidation state of the central lead atom, then to a fragmentation of the macrocycle itself.

Nyckelord

synchrotron radiation photoelectron spectroscopy

aromatics

indium antimonide

heterojunctions

semiconductor-semiconductor thin film structures

copper phthalocyanine monolayers

epitaxial-growth

surfaces

photoemission

orientation

si(111)-7x7

si(001)-2x1

overlayers

inas

insb

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