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Wang, Jiayue; Mueller, David N.; Crumlin, Ethan J.
Journal of the European Ceramic Society, December 2024, 2024-12-00, 2024-12-01, Letnik: 44, Številka: 15Journal Article
Oxygen vacancies play a crucial role in shaping the properties of metal oxides for diverse applications such as catalysis, ferroelectricity, magnetism, and superconductivity. Although X-ray photoelectron spectroscopy (XPS) is a robust tool, accurate quantification of oxygen vacancies remains a challenge. A common mistake in XPS analysis is associating the 531–532 eV feature in O 1s spectra with oxygen vacancies. This is incorrect because a vacant oxygen site does not emit photoelectrons and therefore does not generate a direct XPS spectral feature. To address this issue, we propose three alternative approaches for oxygen vacancy analysis with XPS through indirect features: (1) quantifying cation valence state variations, (2) assessing oxygen nonstoichiometry via normalized oxygen spectral intensity, and (3) evaluating Fermi energy changes from electrostatic shifts in the binding energy. The recommended strategies will facilitate precise XPS analysis of oxygen vacancies, promoting future studies in understanding and manipulating oxygen vacancies for advanced material development.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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