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  4. 045: XPS for Beginners – Data Analysis 5

045: XPS for Beginners – Data Analysis 5

  • Created April 20, 2021
  • Author Mark Isaacs
  • Category HarwellXPS Beginners Course

In this video, Mark Isaacs introduces peak constraints and how to fit doublet peaks in CasaXPS. If you need a refresher course on why doublet peaks appear in XPS spectra, why not visit our section on the fundamentals of doublet peaks and spin-orbit splitting?

To remind yourself about why doublet appear, why not go back for a refresher in fundamentals 3, or check out our guru page.

Find information about doublet properties (doublet separations etc) from these useful links:

HarwellXPS.Guru element pages

NIST XPS Database

XPS Simplified

XPS Fitting

To learn more about peak broadening in Ti 2p spectra, among others, check out our article on Coster-Kronig transitions!

Download Example Dataset

Practice time!

  1. Don’t forget to calibrate the spectra before analysis
  2. Try fitting every spectra with a single species to start (single oxidation state – make sure you still fit doublets as doublets)
  3. Pt 4f might require a second attempt (you may wish to repeat this after watching the next video, on asymmetric peak shapes)

Continue to Section 6

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