High resolution Auger electron imaging of supported metal particles

Jingyue Liu, G. G. Hembree, G. E. Spinnler, J. A. Venables

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

High spatial resolution Auger electron spectra and images of supported metal particles have been obtained in a UHV scanning transmission electron microscope. An edge resolution < 3 nm has been achieved. The number of atoms in a small particle can be estimated from the integrated intensity of the Auger electrons. This method is very useful for detecting and measuring particles with sizes smaller than the incident probe size. Ag clusters containing less than 20 atoms have been detected when supported on a thin carbon film.

Original languageEnglish (US)
Pages (from-to)133-143
Number of pages11
JournalCatalysis Letters
Volume15
Issue number1-2
DOIs
StatePublished - Mar 1 1992

Keywords

  • Auger electron imaging
  • Auger electron spectroscopy
  • small particles
  • supported catalysts

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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