Useful X-ray Photoelectron Spectroscopy-Based Chemical Tool: Differential Charging Studies of Complex Composite Materials

Susanna L. Bergman, Girija S. Sahasrabudhe, Huiwen Ji, Robert J. Cava, Steven L. Bernasek

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Traditional X-ray photoelectron spectroscopy can inappropriately indicate the presence of two or more oxidation states for metal(s) in certain polycrystalline phase pure metal-oxides. We attribute this behavior to differential charging of samples. By employing an external bias, DC or AC, to the sample holder during spectral acquisition, we were able to minimize charging effects and determine properties dependent on grain/grain and substrate/grain interactions of complex composite polycrystalline materials.

Original languageEnglish (US)
Pages (from-to)4162-4166
Number of pages5
JournalChemistry of Materials
Volume29
Issue number10
DOIs
StatePublished - May 23 2017

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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