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Valence band behaviour of zirconium oxide, Photoelectron and Auger spectroscopy study.

ABSTRACT: In this study X-ray Photoelectron Spectroscopy and Ultraviolet Photoelectron Spectroscopy were combined to investigate the effect of oxygen incorporation on the valence band behaviour of ZrO_x. The Auger transitions involving valence bands are found to mimic the self-folded density of state measured using Ultraviolet Photoelectron Spectroscopy. The valence band once constructed in a sub-oxide form, stays at a fixed energy position despite the change in the stoichiometry. This behaviour is found to be useful in setting a reference for X-ray Photoelectron Spectroscopy charge correction. The results of the charged corrected spectra were compared to other methods and found to be in great agreement. Finally, a correlation between the core-level binding energy and the structural property of ZrO_x is given.

SUBMITTER: Azdad Z

PROVIDER: S-EPMC6214953 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Valence band behaviour of zirconium oxide, Photoelectron and Auger spectroscopy study.

Azdad Zakaria Z Marot Laurent L Moser Lucas L Steiner Roland R Meyer Ernst E

Scientific reports 20181102 1

In this study X-ray Photoelectron Spectroscopy and Ultraviolet Photoelectron Spectroscopy were combined to investigate the effect of oxygen incorporation on the valence band behaviour of ZrO<sub>x</sub>. The Auger transitions involving valence bands are found to mimic the self-folded density of state measured using Ultraviolet Photoelectron Spectroscopy. The valence band once constructed in a sub-oxide form, stays at a fixed energy position despite the change in the stoichiometry. This behaviour ...[more]

PMID: 30389986

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