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Lead phthalocyanine films by near edge X-ray absorption fine structure spectroscopy (Articolo in rivista)

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Lead phthalocyanine films by near edge X-ray absorption fine structure spectroscopy (Articolo in rivista) (literal)

Anno

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Alternative label

Salomon, E; Papageorgiou, N; Angot, T; Verdini, A; Cossaro, A; Floreano, L; Morgante, A; Giovanelli, L; Le Lay, G (2007)
Lead phthalocyanine films by near edge X-ray absorption fine structure spectroscopy
in Journal of physical chemistry. C
(literal)

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Salomon, E; Papageorgiou, N; Angot, T; Verdini, A; Cossaro, A; Floreano, L; Morgante, A; Giovanelli, L; Le Lay, G (literal)

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Univ Aix Marseille 1, CNRS, UMR 6633, F-13397 Marseille 20, France; CNR, INFM, Lab Nazl TASC, I-34012 Trieste, Italy; Univ Trieste, Dept Phys, I-34123 Trieste, Italy; L2MP, F-13397 Marseille 20, France; CNRS, CRMCN, F-13288 Marseille 9, France (literal)

Titolo

Lead phthalocyanine films by near edge X-ray absorption fine structure spectroscopy (literal)

Abstract

We measured NEXAFS spectra on both C and N K-edges of an ordered monolayer of lead phthalocyanine adsorbed onto an InSb(001) 4 x 2/c(8 x 2) substrate. We compared the spectra with the calculated density of unoccupied states of an isolated molecule. We demonstrate that molecules lay flat on the surface, determine the energy position of the lowest excited state, and show that it is site dependent. Finally, we compare the core exciton structure with the valence exciton structure previously measured by two different valence spectroscopic techniques and discuss their differences in terms of electron-nuclear and electron-hole Coulomb interactions. (literal)

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