Application of X-ray photoelectron spectroscopy to characterization of Au nanoparticles formed by ion implantation into SiO 2

K. Takahiro, S. Oizumi, K. Morimoto, K. Kawatsura, T. Isshiki, K. Nishio, S. Nagata, S. Yamamoto, K. Narumi, H. Naramoto

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

In X-ray photoelectron spectroscopy (XPS) of Au nanoparticles, the width of 5d valence band changes with Au particle size. This enables us to estimate the size of Au nanoparticles by using XPS. In this work, the 5d-band width has been measured for Au nanoparticles formed by ion implantation into SiO 2 . The 5d-band width is found to be correlated strongly with the Au concentration. As the Au concentration increases, the 5d-band width becomes larger, indicating that the Au nanoparticles with the larger size tend to be formed in the vicinity of the projected range of Au ions. This correlation agrees very well with the results from transmission electron microscopy.

Original languageEnglish
Pages (from-to)1061-1064
Number of pages4
JournalApplied Surface Science
Volume256
Issue number4
DOIs
Publication statusPublished - 2009 Nov 30

Keywords

  • Au
  • Ion implantation
  • Nanoparticle
  • SiO
  • Valence band
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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