A photoemission study of cluster growth and morphology on inert substrates

Greg D Haugstad, C. Caprile, A. Franciosi, D. M. Wieliczka, C. G. Olson

Research output: Contribution to journalArticlepeer-review

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Abstract

Thin metal overlayer growth on solid xenon was characterized by means of synchrotron radiation photoemission spectroscopy. We employed a simple experimental arrangement in which a closed-cycle refrigerator and in situ evaporated metal films were used as substrate for Xe condensation. A "sandwich" geometry, in which the overlayer metal was used as substrate for Xe condensation, simplified the isolation of metal and Xe emission features. The evolution of the Xe and metal photoemission intensity and the line shape of core and valence states, as a function of metal coverage, were used to estimate average particle size and nucleation site density. The coverage dependence of the Sm 4f binding energy, as well as a number of newly identified spectral fingerprints of particle coalescence, support the measured film morphology and particle size.

Original languageEnglish (US)
Pages (from-to)7333-7341
Number of pages9
JournalJournal of Applied Physics
Volume70
Issue number12
DOIs
StatePublished - Dec 1 1991

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