Dr. Alberto Herrera-Gomez

645 Spicer points

3 Followers

Posts

Posts in Database

Groups

Information

  • This post is for a peak-fitting test for students of the Universidad Autonoma de Queretaro.
    Read more

    Information about the sample:

    • Shape: Flat surface

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    xpsoasis_280_image_100.jpg
  • Fitting exercise for the Material's Characterization Course at the Universidad Autónoma de Querétaro
    Read more

    Information about the sample:

    • Shape: Flat surface

    • Sample material: SiC on silicon

    • Elements: Si, C, O

    • Sample composition: SiC/Si

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 85

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

  • Database
    Data from Vince Crist (https://xpslibrary.com/b-vincent-crist-ceo/). The spectrum is good enough to determine the Lorentzian width, which resulted different from bulk silicon. (US Government data copyright number TX 4-560-881.)
    Read more

    Information about the sample:

    • Sample material: Quartz

    • Elements: Si, O

    • Sample composition: SiO2

    Equipment and analysis software:

    • Brand: Kratos

    • Software used: Analyzer

    xpsoasis_328_image_100.png
  • Read more

    Files :

    • You must be logged-in to download data

    Equipment and analysis software:

    • Software used: aanalyzer

    aanalyzer_713_image_14.jpg
  • Database
    The red, fushia, and olive-green peaks correspond to the 1+, 2+, and 3+ suboxides (parameters from Himpsel et al. Surf. Inter. Anal. 21. 44-50 (1994)). The green peak is the ST peak described in the paper titled "The ST component in the Si 2p photoemission spectrum from clean and oxidized Si [001] surfaces" (to be publish).
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: silicon oxide layer

    • Elements: Si, O

    • Sample composition: SiO2, Si

    xpsoasis_380_image_100.jpg
  • download the data, fit it, and post it as a comment
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: SiO2/Si

    • Elements: Si, O

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 85

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    xpsoasis_663_image_100.png
  • download the data, fit it, and post it as a comment
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: clean silicon

    • Elements: Si

    • Sample composition: Si

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 85

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    xpsoasis_664_image_100.png
  • This is the cleanest si we could get. It is H-terminated.
    Read more

    Files :

    • You must be logged-in to download data

    Equipment and analysis software:

    • Software used: aanalyzer

    aanalyzer_712_image_14.jpg
  • please download it, fit it and post it as a comment
    Read more

    Files :

    • You must be logged-in to download data

    Equipment and analysis software:

    • Software used: AAnalyzer

    xpsoasis_668_image_100.jpg
  • just try to fit it and post it
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Quartz

    • Elements: Si, O

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: ThermoFisher

    xpsoasis_657_image_100.png
  • try it
    Read more

    Files :

    • You must be logged-in to download data

    Equipment and analysis software:

    • Software used: aanalyzer

    aanalyzer_979_image_14.jpg
  • Which life-time width should I use? Which fitting software do you recommend?
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: HfO2/SiO2/Si

    • Elements: Si, O, Hf

    • Sample composition: HfO2/SiO2

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 85

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    xpsoasis_545_image_100.png
  • download the data and try to fit it; then, post it as a comment
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Elements: Ni, O

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Spectrometer mode: small area, large angle

    xpsoasis_658_image_100.png
  • download the data, fit it and post it as a comment
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: HfO/SiO/Si

    • Elements: Hf, O, Si

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 85

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    xpsoasis_660_image_100.png
  • try it
    Read more

    Files :

    • You must be logged-in to download data

    Equipment and analysis software:

    • Software used: aanalyzer

    aanalyzer_978_image_14.jpg
  • please propose a fit
    Read more

    Information about the sample:

    • Sample material: covellite

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    xpsoasis_186_image_100.png
  • please propose a fit
    Read more

    Information about the sample:

    • Sample material: ZnS

    • Elements: Zn, S

    • Sample composition: ZnS

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    xpsoasis_184_image_100.png
  • please propose a fit
    Read more

    Information about the sample:

    • Sample material: SnS

    • Sample composition: SnS

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    xpsoasis_185_image_100.png
  • Showing HOPG C 1s spectra from different sources
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: HOPG

    • Elements: C

    Data acquisition parameters:

    • Pass energy: 10

    Equipment and analysis software:

    • Brand: Kratos

    xpsoasis_679_image_100.png
  • The first peak from right to left corresponds to sp2 and the second to sp3. The other three peaks correspond to adventitious surface carbon.
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: Graphite

    • Elements: C, O

    • Sample composition: C

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: Thermofisher

    • Spectrometer mode: Small area, large angle

    • Software used: aanalyzer

    aanalyzer_700_image_14.jpg
  • June 4, 5 PM CT

    Read more
  • June 3, 5 PM CT

    Read more
  • Besides using a DL, a extra peak was added
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: Metallic nickel

    • Elements: Ni

    • Sample composition: Ni

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 15

    • Take-off angle: 85

    Equipment and analysis software:

    • Software used: aanalyzer

    aanalyzer_769_image_14.jpg
  • This post is described in the document titled "A formal expression for the photoemission signal and the angular transmission function" that can be found at http://www.qro.cinvestav.mx/~aherrera/reportesInternos/formalExpressionXPSIntensity.pdf
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: metallic nickel

    • Elements: Ni

    • Sample composition: Ni

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 15

    • Take-off angle: 85

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha110

    • Spectrometer mode: large angle small area

    • Software used: aanalyzer

    aanalyzer_765_image_14.jpg
  • Fitting exercise for the Material's Characterization course at the Universidad Autónoma de Querétaro
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat surface

    • Sample material: clean Au film on Si

    • Elements: Au

    • Sample composition: Au

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    xpsoasis_231_image_100.png
  • Database
    This fit is a slight variation of that published in Surf. Interface Anal. 52, 591-599 (2020). https://doi.org/10.1002/sia.6796. The fit is very complex; this is why, even though Fe 2p is widely studied core level, its fit hadn't been reported before 2020. This is the result of a simultaneous fit to iron films of different thicknesses, resulting in a robust fit.
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: metallic iron

    • Elements: Fe

    • Sample composition: Fe

    Data acquisition parameters:

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    • Software used: Analyzer

    xpsoasis_373_image_100.jpg
  • The use of the spectrum requires acknowledging https://xpslibrary.com/, the data is copyrighted. X-ray incident angle: 55°. The fit required the use of asymmetric double-Lorentzian lineshapes for the main peak. The SVSC parameter of the satellites is slightly smaller that from the main peak. The fit is slightly off in the circled regions.
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Tin

    • Elements: Sn

    • Sample composition: Sn

    Equipment and analysis software:

    • Software used: Analyzer

    xpsoasis_493_image_100.jpg
  • Database
    The use of the spectrum requires acknowledging https://xpslibrary.com/, the data is copyrighted. X-ray incident angle: 55°. The fit required the use of asymmetric double-Lorentzian lineshapes for the main peak. The SVSC parameter for the satellites is about 5 times larger than for the main peak. The fit for Sn 3d (post #493) is similar. The uncertainties were calculated using a gain of 4.8 (48 scans, 0.1 dwelling time). Read less
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: pure Cd

    • Elements: Cd

    • Sample composition: Cd

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 14.3

    • Take-off angle: 90

    Equipment and analysis software:

    • Spectrometer mode: FAT

    • Software used: Analyzer

    xpsoasis_491_image_100.png
  • The use of the spectrum requires acknowledging https://xpslibrary.com/, the data is copyrighted. X-ray incident angle: 55°. The fit required the use of asymmetric double-Lorentzian lineshapes for the main peak. The SVSC parameter of the satellites is about the same as for the main peak.Read less
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: indium

    • Elements: In

    • Sample composition: In

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 14.3

    • Take-off angle: 90

    Equipment and analysis software:

    • Spectrometer mode: FAT

    • Software used: Analyzer

    xpsoasis_494_image_100.jpg
  • download the data, fit it and post is as a comment
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: HfO2/Si

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 10

    • Take-off angle: 85

    Equipment and analysis software:

    • Spectrometer mode: small area, large angle

    xpsoasis_662_image_100.png
  • Read more

    Files :

    • You must be logged-in to download data

    Data acquisition parameters:

    • Photon source: Synchrotron. Energy

    Equipment and analysis software:

    • Software used: aanalyzer

    aanalyzer_695_image_14.jpg
  • very clean gold film
    Read more

    Files :

    • You must be logged-in to download data

    Equipment and analysis software:

    • Software used: aanalyzer

    aanalyzer_714_image_14.jpg
  • Database
    Data from Vince Crist (https://xpslibrary.com/b-vincent-crist-ceo/). The spectrum is good enough to determine the Lorentzian width, which resulted different from bulk silicon. (US Government data copyright number TX 4-560-881.)
    Read more

    Information about the sample:

    • Sample material: Quartz

    • Elements: Si, O

    • Sample composition: SiO2

    Equipment and analysis software:

    • Brand: Kratos

    • Software used: Analyzer

    xpsoasis_328_image_100.png
  • Database
    The red, fushia, and olive-green peaks correspond to the 1+, 2+, and 3+ suboxides (parameters from Himpsel et al. Surf. Inter. Anal. 21. 44-50 (1994)). The green peak is the ST peak described in the paper titled "The ST component in the Si 2p photoemission spectrum from clean and oxidized Si [001] surfaces" (to be publish).
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: silicon oxide layer

    • Elements: Si, O

    • Sample composition: SiO2, Si

    xpsoasis_380_image_100.jpg
  • Database
    This fit is a slight variation of that published in Surf. Interface Anal. 52, 591-599 (2020). https://doi.org/10.1002/sia.6796. The fit is very complex; this is why, even though Fe 2p is widely studied core level, its fit hadn't been reported before 2020. This is the result of a simultaneous fit to iron films of different thicknesses, resulting in a robust fit.
    Read more

    Files :

    • You must be logged-in to download data

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: metallic iron

    • Elements: Fe

    • Sample composition: Fe

    Data acquisition parameters:

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    • Software used: Analyzer

    xpsoasis_373_image_100.jpg
  • Database
    The use of the spectrum requires acknowledging https://xpslibrary.com/, the data is copyrighted. X-ray incident angle: 55°. The fit required the use of asymmetric double-Lorentzian lineshapes for the main peak. The SVSC parameter for the satellites is about 5 times larger than for the main peak. The fit for Sn 3d (post #493) is similar. The uncertainties were calculated using a gain of 4.8 (48 scans, 0.1 dwelling time). Read less
    Read more

    Information about the sample:

    • Shape: Flat Surface

    • Sample material: pure Cd

    • Elements: Cd

    • Sample composition: Cd

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 14.3

    • Take-off angle: 90

    Equipment and analysis software:

    • Spectrometer mode: FAT

    • Software used: Analyzer

    xpsoasis_491_image_100.png

Ni oxidation

Public • 6 Member • 0 Post

Created by

Dr. Alberto Herrera-Gomez

Since 2021-04-26 18:09

Description

study of the early stages of the oxidation of metallic nickel

Take a look

Full name:

Alberto Herrera-Gomez

Title:

Doctor

organization:

Cinvestav

Country:

Mexico

This user is:

Developer

Admin

Moderator in element:

Moderator in forums:

Number of post in database:

4

Number of post:

Total: 14

(8 posts ) (7 posts ) (3 posts ) (2 posts ) (2 posts ) (2 posts ) (1 posts ) (1 posts ) (1 posts ) (1 posts ) (1 posts ) (1 posts ) (1 posts ) (1 posts )