Planning

 PLANNING 2016 (pour information)

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NF: Neal Fairley
ST: Sven Tougaard
MB: Mark C. Biesinger
JW: John Walton
DF: Delphine Flahaut
VF: Vincent Fernandez


QUASES - Tougaard software package for characterization of nano-structures by XPS

Lundi

  • 9:50 - 10:50 Theory behind the Quases-Tougaard software package.
  • 10:50 - 12:30 Practical application of the software.
  • 14:30 - 15:30 From raw spectra to final evaluation. Hands on.
  • 15:50 - 16:30 Guided hands on application of Quases to determine the quantitative nano-structure of several practical cases

Mardi

  • 8:30 - 9:30 Individual guidance on the potential applications of the QUASES-Tougaard software package to your research.

QUASES-Workshop announcement (PDF)
Summaries Mark Biesinger.(PDF)


Résumé du cours théorique et des travaux pratiques de Mark C. Biesinger


Chemical state X-ray photoelectron (XPS) spectroscopic analysis of first row transition metals, oxides and hydroxides is challenging due to the complexity of the 2p spectra resulting from peak asymmetries, complex multiplet splitting, shake-up and plasmon loss structure, and uncertain, overlapping binding energies. A more consistent, practical and effective approach to curve-fitting the various chemical states in a variety of first row transition metal (and other) species will be presented. The curve-fitting procedures proposed are based on a combination of 1) standard spectra from quality reference samples, 2) a survey of appropriate literature databases and literature references, and 3) fitting of multiplet split spectra based on standard spectra and theoretical XPS modelling of these transition metal species. Also presented is an analysis of the Auger parameter and Wagner plots which allows for the elucidation of initial and final state effects, and a greater understanding of bonding within species.

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