X-ray photoelectron spectroscopic binding energy shifts due to matrix in alloys and small supported metal particles

Research output: Contribution to journalArticle

131 Citations (Scopus)

Abstract

Core level binding energies of metals in the following alloys and metal-dispersed or -implanted materials have been studied: AuAg, PtAg, PtC and AuSiO2. Their shifts from the binding energies of pure species (referenced to the Fermi level) are interpreted to consist of a matrix shift resulting from differences in crystal field potential, relaxation energy and work function as well as a chemical shift due to differences in valence electron density. By estimating the matrix shift using implanted Ar in the related pure materials, the chemical shift could be isolated from the observed binding energy shift. In all cases studied, the matrix shift is greater than the chemical shift and its contribution to the binding energy shifts is in the opposite direction.

Original languageEnglish (US)
Pages (from-to)91-95
Number of pages5
JournalChemical Physics Letters
Volume30
Issue number1
DOIs
StatePublished - Jan 1 1975

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metal particles
Photoelectrons
Binding energy
Chemical shift
photoelectrons
binding energy
Metals
X rays
shift
matrices
chemical equilibrium
x rays
Core levels
Fermi level
Carrier concentration
metals
Crystals
crystal field theory
estimating
valence

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

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abstract = "Core level binding energies of metals in the following alloys and metal-dispersed or -implanted materials have been studied: AuAg, PtAg, PtC and AuSiO2. Their shifts from the binding energies of pure species (referenced to the Fermi level) are interpreted to consist of a matrix shift resulting from differences in crystal field potential, relaxation energy and work function as well as a chemical shift due to differences in valence electron density. By estimating the matrix shift using implanted Ar in the related pure materials, the chemical shift could be isolated from the observed binding energy shift. In all cases studied, the matrix shift is greater than the chemical shift and its contribution to the binding energy shifts is in the opposite direction.",
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X-ray photoelectron spectroscopic binding energy shifts due to matrix in alloys and small supported metal particles. / Kim, K. S.; Winograd, Nicholas.

In: Chemical Physics Letters, Vol. 30, No. 1, 01.01.1975, p. 91-95.

Research output: Contribution to journalArticle

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