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Photoemission on gold-55-clusters derived from gold-phosphine AuP(C6H5)3Cl

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

We measured XPS and UPS spectra of gold clusters with 55 atoms, embedded in an electrically isolating phosphine matrix, and of gold-phosphine, from which the clusters were chemically derived. Compared to the spectra of bulk gold the valence band spectrum and the core level spectra of the clusters showed shifts of the peaks and the fermi level to higher binding energies.

The shift of the peaks could qualitatively be interpreted by a final state effect. We succeeded in a separation of bulk and surface contributions to the core level spectra and in a reasonable quantitative analysis of the valence band spectrum of the clusters.

The Au 4f core level spectrum of gold-phosphine showed two peaks at 1.5 eV higher binding energies than the corresponding peaks of the clusters.

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Quinten, M., Sander, I., Steiner, P. et al. Photoemission on gold-55-clusters derived from gold-phosphine AuP(C6H5)3Cl. Z Phys D - Atoms, Molecules and Clusters 20, 377–379 (1991). https://doi.org/10.1007/BF01544015

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  • DOI: https://doi.org/10.1007/BF01544015

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