Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foil

Principal component analysis (PCA), as applied to the processing of the complex X-ray photoelectron spectroscopy (XPS) lineshapes, is discussed. PCA analysis example is provided of complex native iron oxide films on Fe foil XPS spectra further modified by argon and helium ion beams. Abstract PCA com...

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Main Authors: Neal Fairley, Pascal Bargiela, Wei-Min Huang, Jonas Baltrusaitis
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Applied Surface Science Advances
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666523923000818
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author Neal Fairley
Pascal Bargiela
Wei-Min Huang
Jonas Baltrusaitis
author_facet Neal Fairley
Pascal Bargiela
Wei-Min Huang
Jonas Baltrusaitis
author_sort Neal Fairley
collection DOAJ
description Principal component analysis (PCA), as applied to the processing of the complex X-ray photoelectron spectroscopy (XPS) lineshapes, is discussed. PCA analysis example is provided of complex native iron oxide films on Fe foil XPS spectra further modified by argon and helium ion beams. Abstract PCA components are derived from Fe 2p, O 1 s and C 1 s regions leading to the assignments of surface (oxy)hydroxide, Fe2O3, FeO and Fe metal, as corroborated by the corresponding elemental quantification profiles. Detailed mathematical concepts behind PCA analysis of spectra data are provided.
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spelling doaj.art-b7c0fbfc7261468580fc912cd7f714a02023-09-18T04:31:00ZengElsevierApplied Surface Science Advances2666-52392023-10-0117100447Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foilNeal Fairley0Pascal Bargiela1Wei-Min Huang2Jonas Baltrusaitis3Casa Software Ltd, Bay House, 5 Grosvenor Terrace, Teignmouth, Devon TQ 14 8NE, United KingdomThe Institute for Research on Catalysis and the Environment of Lyon (IRCELYON), University of Lyon, 2 Avenue Albert Einstein, Villeurbanne 69626, FranceDepartment of Mathematics, Lehigh University, Chandler-Ullmann Hall, Bethlehem, PA 18015, United StatesDepartment of Chemical and Biomolecular Engineering, Lehigh University, 111 Research Drive, Bethlehem, PA 18015, United States; Corresponding author.Principal component analysis (PCA), as applied to the processing of the complex X-ray photoelectron spectroscopy (XPS) lineshapes, is discussed. PCA analysis example is provided of complex native iron oxide films on Fe foil XPS spectra further modified by argon and helium ion beams. Abstract PCA components are derived from Fe 2p, O 1 s and C 1 s regions leading to the assignments of surface (oxy)hydroxide, Fe2O3, FeO and Fe metal, as corroborated by the corresponding elemental quantification profiles. Detailed mathematical concepts behind PCA analysis of spectra data are provided.http://www.sciencedirect.com/science/article/pii/S2666523923000818PCAXPSIron oxide
spellingShingle Neal Fairley
Pascal Bargiela
Wei-Min Huang
Jonas Baltrusaitis
Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foil
Applied Surface Science Advances
PCA
XPS
Iron oxide
title Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foil
title_full Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foil
title_fullStr Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foil
title_full_unstemmed Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foil
title_short Principal Component Analysis (PCA) unravels spectral components present in XPS spectra of complex oxide films on iron foil
title_sort principal component analysis pca unravels spectral components present in xps spectra of complex oxide films on iron foil
topic PCA
XPS
Iron oxide
url http://www.sciencedirect.com/science/article/pii/S2666523923000818
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AT weiminhuang principalcomponentanalysispcaunravelsspectralcomponentspresentinxpsspectraofcomplexoxidefilmsonironfoil
AT jonasbaltrusaitis principalcomponentanalysispcaunravelsspectralcomponentspresentinxpsspectraofcomplexoxidefilmsonironfoil