Alberto's profile

Alberto
Date: 2021-06-04 02:53
Test for UAQ students
This post is for a peak-fitting test for students of the Universidad Autonoma de Queretaro.
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Information about the sample:
Shape: Flat surface
Data acquisition parameters:
Photon source: Al Ka monochromatic
2 votes
19 comments
Alberto
Date: 2021-05-25 16:43
Si 2p from SiC with a plasmon (Si 2p forum)
Fitting exercise for the Material's Characterization Course at the Universidad Autónoma de Querétaro
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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
0 votes
15 comments
Database
Alberto
Date: 2021-09-29 20:59
Great spectrum from pure silica from a laser optical window
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
0 votes
2 comments
Alberto
Date: 2023-08-01 16:46
Si 2p wide scan
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Files :
You must be logged-in to download data
Equipment and analysis software:
Software used: aanalyzer
0 votes
0No comments yet
Database
Alberto
Date: 2021-10-07 04:12
Si 2p with suboxides and ST
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).
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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
0 votes
0No comments yet
Alberto
Date: 2022-09-28 22:51
Si 2p in SiO2/Si. To be used in the 9/22 SMCTSM conference course on XPS fitting
download the data, fit it, and post it as a comment
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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
0 votes
0No comments yet
Alberto
Date: 2022-09-28 22:58
Si 2p in clean Si. To be used in the 9/22 SMCTSM conference course on XPS fitting
download the data, fit it, and post it as a comment
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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
0 votes
0No comments yet
Alberto
Date: 2023-08-01 16:37
RCA clean
This is the cleanest si we could get. It is H-terminated.
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Files :
You must be logged-in to download data
Equipment and analysis software:
Software used: aanalyzer
0 votes
0No comments yet

Alberto
Date: 2022-09-29 15:49
for SMCTSM course
please download it, fit it and post it as a comment
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Files :
You must be logged-in to download data
Equipment and analysis software:
Software used: AAnalyzer
0 votes
4 comments
Alberto
Date: 2022-09-28 21:38
O 1s from quartz. To be used in the 9/22 SMCTSM conference course on XPS fitting
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
0 votes
3 comments
Alberto
Date: 2022-04-22 03:33
from HfO2/SiO2
Which life-time width should I use? Which fitting software do you recommend?
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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
0 votes
0No comments yet
Alberto
Date: 2022-09-28 22:06
O 1s from nickel oxide. To be used in the 9/22 SMCTSM conference course on XPS fitting
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
0 votes
0No comments yet
Alberto
Date: 2022-09-28 22:07
O 1s from HfO/SiO/Si. To be used in the 9/22 SMCTSM conference course on XPS fitting
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
0 votes
0No comments yet

Alberto
Date: 2021-05-07 22:53
S 2p from Covellite
please propose a fit
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Information about the sample:
Sample material: covellite
Data acquisition parameters:
Photon source: Al Ka (monochromatic)
0 votes
0No comments yet
Alberto
Date: 2021-05-07 22:49
S 2p from ZnS
please propose a fit
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Information about the sample:
Sample material: ZnS
Elements: Zn, S
Sample composition: ZnS
Data acquisition parameters:
Photon source: Al Ka (monochromatic)
Pass energy: 10
0 votes
0No comments yet
Alberto
Date: 2021-05-07 22:51
S 2p from SnS
please propose a fit
Read more
Information about the sample:
Sample material: SnS
Sample composition: SnS
Data acquisition parameters:
Photon source: Al Ka (monochromatic)
0 votes
0No comments yet

Alberto
Date: 2022-10-06 04:10
HOPG C 1s from La Trobe CMSS Hub
Showing HOPG C 1s spectra from different sources
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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
0 votes
1 comment
Alberto
Date: 2023-01-19 01:37
C 1s from graphite fitted with symmetric peaks
The first peak from right to left corresponds to sp2 and the second to sp3. The other three peaks correspond to adventitious surface carbon.
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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
0 votes
0No comments yet

Alberto
Date: 2023-10-15 01:00
June 4, 5 PM CT
June 4, 5 PM CT
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2 votes
0No comments yet
Alberto
Date: 2023-10-15 01:00
June 3, 5 PM CT
June 3, 5 PM CT
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-1 votes
0No comments yet

Alberto
Date: 2023-11-09 18:47
Metallic nickel
Besides using a DL, a extra peak was added
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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
0 votes
0No comments yet
Alberto
Date: 2023-10-23 23:39
Ni 2p from metallic nickel
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
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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
0 votes
0No comments yet

Alberto
Date: 2021-05-25 16:19
Au 4f spectrum
Fitting exercise for the Material's Characterization course at the Universidad Autónoma de Querétaro
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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
0 votes
15 comments

Database
Alberto
Date: 2021-10-06 20:34
Metallic iron
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
1 votes
0No comments yet

Alberto
Date: 2022-03-16 01:59
Pure tin. Spectra from https://xpslibrary.com/
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.
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Information about the sample:
Shape: Flat Surface
Sample material: Tin
Elements: Sn
Sample composition: Sn
Equipment and analysis software:
Software used: Analyzer
0 votes
3 comments

Database
Alberto
Date: 2022-03-15 21:14
Pure cadmium. Spectra from https://xpslibrary.com/
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
0 votes
1 comment

Alberto
Date: 2022-03-16 02:10
Pure indium. Spectra from https://xpslibrary.com/
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
0 votes
1 comment

Alberto
Date: 2022-09-28 22:45
Hf 4f from HfO2. To be used in the 9/22 SMCTSM conference course on XPS fitting
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
0 votes
0No comments yet

Alberto
Date: 2022-12-04 19:56
hv 5021 eV
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
0 votes
0No comments yet

Alberto
Date: 2023-08-01 17:07
survey of a clean gold sample
very clean gold film
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Files :
You must be logged-in to download data
Equipment and analysis software:
Software used: aanalyzer
0 votes
0No comments yet

Database
Alberto
Date: 2021-09-29 20:59
Great spectrum from pure silica from a laser optical window
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
0 votes
2 comments
Database
Alberto
Date: 2021-10-07 04:12
Si 2p with suboxides and ST
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
0 votes
0No comments yet

Database
Alberto
Date: 2021-10-06 20:34
Metallic iron
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
1 votes
0No comments yet

Database
Alberto
Date: 2022-03-15 21:14
Pure cadmium. Spectra from https://xpslibrary.com/
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
0 votes
1 comment