Engr. Dulce María Guzmán Bucio

356 Spicer points

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    The spectra were obtained from the surface of a metallic nickel thick sample exposed to UHP O2 at 100°C for 8 min in a tubular furnace. The spectra were fitted through the block approach* and are displayed normalized. The main peak (shown in olive green) corresponds to the metallic component; the five doublets are associated to the oxide components. Data included in a Master Degree Thesis (Guzmán-Bucio et al. "Oxidation mechanism of metallic nickel," to be published). * A. Herrera-Gómez, F.S. Aguirre-Tostado, Y. Sun, P. Pianetta, Z. Yu, D. Marshall, R. Droopad, W.E. Spicer, Photoemission from the Sr/Si(001) interface, J. Appl. Phys. 90 (2001) 6070–6072. https://doi.org/10.1063/1.1415758.

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Partially oxidized Ni

    • Elements: Ni, O, C

    • Sample composition: Ni2O3

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 15

    • Take-off angle: various (from top to bottom 90°, 70°, 50°, 40°)

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha110

    • Spectrometer mode: small area, large angle

    graph.jpeg
  • Database

    The main photoemission line (displayed in blue) was fitted with a Double-Lorentzian lineshape. The spectra was obtained from the surface of a metallic nickel thick sample deposited by thermal sublimation in UHV conditions. Data included in a Master Degree Thesis (Guzmán-Bucio et al. "Oxidation mechanism of metallic nickel," to be published).

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Metallic Ni

    • Elements: Ni

    • Sample composition: Ni

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha110

    • Spectrometer mode: small area, large angle

    graph.jpeg
  • Database

    The main doublet was fitted with three symetric Voigt doublets (shown in navy blue, blue and aqua). The spectra was obtained from the surface of a metallic nickel thick sample deposited by thermal sublimation in UHV conditions. Data included in a Master Degree Thesis (Guzmán-Bucio et al. "Oxidation mechanim of metallic nickel," to be published).

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Metallic Ni

    • Elements: Ni

    • Sample composition: Ni

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha110

    • Spectrometer mode: small area, large angle

    • Software used: Analyzer

    graph.jpeg
  • The spectra were obtained from a partially oxidized nickel surface and were fitted with the software AAnalyzer(R). The two components at lower binding energy (displayed in olive green) are associated with Ni2O3, the component at higher binding energy (displayed in purple) is associated with adventitious oxygen. Data included in a Master Thesis (Guzmán-Bucio, Dulce M. Mecanismo de oxidación de níquel metálico, Cinvestav, Querétaro).

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    Information about the sample:

    • Shape: Flat surface

    • Sample material: Partially oxidized Ni

    • Elements: Ni, O, C

    • Sample composition: Ni2O3

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 15

    • Take-off angle: various

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha110

    • Spectrometer mode: small area, large angle

    • Software used: AAnalyzer

    .jpeg
  • Database

    O 1s spectra was obtained from the surface of a hafnium oxide sample that was deposited by atomic layer deposition over Si(1 0 0) wafers. The component at ~530 eV is associated to Hf-O bonding in hafnium oxide. The component at 532 eV has contributions from the oxygen of the superficial hydroxil groups and from the oxygen in hafnium silicate at the interface HfO2/Si.

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    Information about the sample:

    • Shape: Flat surface

    • Sample material: Hafnium oxide

    • Elements: Hf, O, Si

    • Sample composition: HfO2/HfSiO2/Si

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Take-off angle: 85°

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: large angle, small area

    O 1s 2.fil.jpeg
  • The spectrum was obtained from a metallic nickel surface. The four doublets are associated to metallic nickel.

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    Information about the sample:

    • Shape: Flat surface

    • Sample material: Metallic Ni

    • Elements: Ni

    • Sample composition: Ni

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: ThemoFisher

    • Model: Alpha110

    • Spectrometer mode: small area, large angle

    • Software used: AAnalyzer

    graph.jpeg
  • Database

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    Information about the sample:

    • Shape: Flat surface

    • Sample material: Nickel

    • Elements: Ni

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: -

    • Model: -

    • Spectrometer mode: -

    Ni 3s spectra in.fil.img
  • 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

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    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

    grapth.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

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    Files :

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    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

    grapth.png
  • C 1s spectra was obtained from the surface of a nickel thick sample that was exposed to ultra pure oxygen at 100°C for 8 minutes in the tubular furnace. The peaks at 284.56, 286.50, and 288.15 eV correspond to C-C, C-O, and C=O bonds, all present in adventitious carbon. The peak at 292.62 eV probably is associated to compounds with C-C, C-O and C-H bonds or physisorbed CO2. Finally, the peak at 282.98 eV is diffused carbon, respectively. Data included in a Master Thesis (Guzmán-Bucio, Dulce M. Mecanismo de oxidación de níquel metálico, Cinvestav, Querétaro)

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    Information about the sample:

    • Shape: Flat surface

    • Sample material: Nickel (III) oxide

    • Elements: Ni, O, C

    • Sample composition: Ni2O3.13

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 15

    • Take-off angle: 90°

    Equipment and analysis software:

    • Brand: ThermoFisher

    • Model: Alpha 110

    • Spectrometer mode: small area, large angle

    C 1s in NiO one angle.fil.jpeg
  • The spectrum was obtained from a metallic nickel surface. The four doublets are associated to metallic nickel.

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    Information about the sample:

    • Shape: Flat surface

    • Sample material: Metallic Ni

    • Elements: Ni

    • Sample composition: Ni

    Data acquisition parameters:

    • Photon source: Al Ka monochromatic

    • Pass energy: 15

    • Take-off angle: 90

    Equipment and analysis software:

    • Brand: ThemoFisher

    • Model: Alpha110

    • Spectrometer mode: small area, large angle

    • Software used: AAnalyzer

    graph.jpeg
  • Strontium 3d spectrum provided by B. Vincent Crist

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    • Elements:

    • Sample composition:

    Data acquisition parameters:

    • Pass energy:

    • Take-off angle:

    Equipment and analysis software:

    • Brand:

    • Model:

    • Spectrometer mode:

    • Software used: AAnalyzer

    graph.jpeg
  • Hf 4f spectrum obtained from a polycrystalline metallic hafnium foil, data were published by Arranz and Palacio (accession #00876-02). The branching ratio of each doublet was forced to be equal to the theoretically expected value taken from the Scofield Tables. A. Arranz and C. Palacio , "Core Level Spectra of Hafnium and Hafnium Nitride (HfN0.9) by XPS", Surface Science Spectra 11, 33-42 (2004) https://doi.org/10.1116/11.20050103

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Metallic Hf

    • Elements: Hf

    • Sample composition: Hf

    Data acquisition parameters:

    • Photon source: Mg Ka

    • Pass energy: 16

    • Take-off angle: 0

    Equipment and analysis software:

    • Brand: SPECS EA

    • Model: 10 model

    • Spectrometer mode: constant pass energy

    Some_image
  • K 2p photoemission spectrum obtained from a KBr surface cleaved in air. The branching ratio of the two doublets were forced to be equal to the theoretically expected values, which were taken from the Scofield tables. The data were published by Vincent Crist. B. Vincent Crist, "KBr Crystal: Cleaved in Air", Surface Science Spectra 1, 292-296 (1992) https://doi.org/10.1116/1.1247654Read more

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Potassium bromide

    • Elements: K, Br

    • Sample composition: KBr

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 25

    • Take-off angle: 0

    Equipment and analysis software:

    • Brand: Surface Science Instruments

    • Model: X-Probe 206

    • Spectrometer mode: constant pass energy

    Some_image
  • The photoemission spectrum for Rh 3d from a metallic thin film of rhodium was published by Abe et al. (accession #00651-02). Three Voigt doublets were employed to model the metallic components (no oxygen signal was detected in the survey spectra). The branching ratio of each doublet was forced to be equal to the theoretically expected value (0.6913) taken from the Scofield tables. Yoshio Abe, Kiyohiko Kato, Midori Kawamura, and Katsutaka Sasaki , "Rhodium and Rhodium Oxide Thin Films Characterized by XPS", Surface Science Spectra 8, 117-125 (2001) https://doi.org/10.1116/11.20010801Read more

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Metallic Rhodium

    • Elements: Rh

    • Sample composition: Rh

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 23.5

    • Take-off angle: 25

    Equipment and analysis software:

    • Brand: Physical Electronics, Inc.

    • Model: 1600

    • Spectrometer mode: constant pass energy

    • Software used: Analyzer

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  • Ru 3d metallic photoemission spectrum fitted. The data were published by Kaga et al. (accession #0041702). The film was deposited on a glass substrate by reactive sputtering. A signal from oxygen was detected in the sample but the area is too small to be associated with any of the Ru 3d peaks and a Ru oxide (under the MultiLayer Method, considering the formation of a top ruthenium oxide layer, the composition of the oxide is RuO0.2), which strongly suggests that the three Ru 3d peaks are metallic components and that the oxygen signal is associated with an adventitious species. The branching ratio of the three doublets was forced to be equal to the theoretically expected value (0.6901), which was taken from the Scofield tables. Department of Materials Science, Kitami Institute of Technology, 165 Koen-cho, Kitami 090-8507, Japan, "Ru and RuO2 Thin Films by XPS", Surface Science Spectra 6, 68-74 (1999) https://doi.org/10.1116/1.1247890Read more

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Metallic Ru

    • Elements: Ru

    • Sample composition: Ru

    Data acquisition parameters:

    • Photon source: Al Ka (monochromatic)

    • Pass energy: 23.5

    • Take-off angle: 0

    Equipment and analysis software:

    • Brand: Physical Electronics, Inc.

    • Model: 1600

    • Spectrometer mode: constant pass energy

    • Software used: Analyzer

    grapth.png
  • Fitting of the Ge 2p photoemission spectrum for a single crystal surface, data were published by Lawson et al. (accession #0032902). The spectrum was fitted employing one Voigt doublet. The branching ratio was forced to be equal to the theoretically expected value (0.5184), 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 moreRead more

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    Information about the sample:

    • Shape: Flat Surface

    • Sample material: Germanium

    • Elements: Ge

    • Sample composition: Ge

    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