Composition assessment of ferric oxide by accurate peak fitting of the Fe 2p photoemission spectrum |
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| Authors: | M Bravo Sanchez J A Huerta‐Ruelas D Cabrera‐German A Herrera‐Gomez |
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| Affiliation: | 1. CINVESTAV—Unidad Queretaro, Queretaro, Mexico;2. Instituto Politecnico Nacional, CICATA‐IPN Unidad Queretaro, Queretaro, Mexico |
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| Abstract: | A quantitative study of the surface composition of ferric oxide employing photoemission spectra is presented. It was possible to accurately reproduce the expected composition (Fe2.00±0.05O3) by modeling the background as a combination of Shirley‐type (Shirley–Vegh–Salvi–Castle) and slope backgrounds through the active approach. The line‐shape employed to fit apparent peak asymmetries was the double‐Lorentzian. It was possible to resolve a previously unreported satellite located at ~729 eV. Copyright © 2016 John Wiley & Sons, Ltd. |
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| Keywords: | quantitative XPS Shirley background Tougaard background active background approach SVSC‐ and slope‐backgrounds double‐Lorentzian line‐shape |
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