V 2p forum

Posts

Moderators

Information

Search

You must login to post

  • Read more

    Information about the sample:

    • Shape: Flat surface

    • Sample material: Vanadium Oxide

    • Elements: V, O

    • Sample composition: VxOy

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: Thermofisher

    • Model: Alpha110

    • Software used: AAnalyzer

    xpsoasis_616_image_100.jpg
  • Fitting of the V 2p photoemission spectrum for a polycrystalline metallic surface, data were published by Lawson et al. (accession #0032402). The apparent asymmetry of the main photoemission line was modeled employing two symmetric Voigt doublets. Another three Voigt doublets were employed to optimize the fitting. The branching ratio of the five components was forced to be equal to the theoretically expected value (0.5165), which was taken from the Scofield tables. Lawson et al., "Study of the First Row Transition Metals by X-ray Photoelectron Spectroscopy", Surface Science Spectra 4, 316-344 (1996) https://doi.org/10.1116/1.1247829Read less
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Polycrystalline metallic Vanadium

    • Elements: V

    • Sample composition: V

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 20

    • Take-off angle: 0

    Equipment and analysis software:

    • Brand: Kratos Analytical, Manchester, UK

    • Model: AXIS HS

    • Spectrometer mode: constant pass energy

    • Software used: Analyzer

    xpsoasis_468_image_100.png
  • Fitting of the V 2p photoemission spectrum for a polycrystalline metallic surface, data were published by Lawson et al. (accession #0032902). The apparent asymmetry of the main photoemission line was modeled employing the Double-Lorentzian asymmetric line-shape. Another three Voigt doublets were employed to optimize the fitting. The branching ratio of the four components was forced to be equal to the theoretically expected value (0.5165), which was taken from the Scofield tables. Lawson et al., "Study of the First Row Transition Metals by X-ray Photoelectron Spectroscopy", Surface Science Spectra 4, 316-344 (1996) https://doi.org/10.1116/1.1247829Read more
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Polycrystalline metallic Vanadium

    • Elements: V

    • Sample composition: V

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 20

    • Take-off angle: 0

    Equipment and analysis software:

    • Brand: Kratos Analytical, Manchester, UK

    • Model: AXIS HS

    • Spectrometer mode: constant pass energy

    • Software used: Analyzer

    xpsoasis_467_image_100.png

V 2p forum moderators

Tops

About forums

  • Do you have a question about your fit? Get help by posting it and waiting for suggestions from other users!

  • Do you want to inspect fits made by other users and see how they are struggling? Pick a core level and join the discussion!

  • Do you have suggestions? Go ahead and help other users!

  • Do you believe that a set of posted peak-fitting parameters might be useful to you? Download it and apply them to your data!

  • Is the forum of your interest still empty? Be the first one to post!