Core level and valence band photoemission spectra of Au clusters embedded in carbon

K. Takahiro, S. Oizumi, A. Terai, K. Kawatsura, B. Tsuchiya, Shinji Nagata, S. Yamamoto, H. Naramoto, K. Narumi, M. Sasase

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

X-ray photoelectron spectroscopy (XPS) has been applied for size estimation of Au clusters formed by ion implantation into glassy carbon. The 4f and 5d XPS spectra reveal the presence of the cluster 0.7-2.5 nm in diameter, depending on the Au concentration. The relationship between XPS 4f -binding energy shift and 5d splitting is determined for the Au clusters embedded in the carbon and found to be significantly different from the previous data for the ones supported on a carbon substrate. We suppose that this difference results from the effect of the environment around a cluster on Coulomb charging during photoemission at the final state.

Original languageEnglish
Article number084325
JournalJournal of Applied Physics
Volume100
Issue number8
DOIs
Publication statusPublished - 2006 Nov 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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