AES and EEL spectra from Zr, Zr + O2 and ZrO2; peak energy shifts and intensity variations at various stages of oxidation in the pressure range 10−6−103 Torr

Axelsson, K.-O.; Keck, K.-E.; Kasemo, Bengt Herbert

doi:10.1016/0039-6028(85)90702-2

Cited by 47 publications

(2 citation statements)

References 22 publications

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“…Coloration of semiconductor oxides has previously been reported to result from reduction and impurity elements (dopants). For example, upon heat treatment under reducing atmospheres, ZrO 2 and TiO 2 have been shown to become black and purple, [34][35][36][37] respectively. Grinding and reduction have also been reported to result in yellow color for ZnO powder.…”

Section: Discussionmentioning

confidence: 99%

Evolution in Structural and Optical Properties of Stannic Oxide Xerogel upon Heat Treatment

Rusakova

et al. 1999

Journal of the American Ceramic Society

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Upon consecutive heat treatments at increasing temperatures, the microstructure of solution-sol-gel-derived stannic oxide (SnO 2 ) xerogel evolves in three stages: (I) below 300°C, characterized by extensive dehydroxylation and gel shrinkage with little grain growth and surface loss; (II) between 300°and 500°C, by extensive crystallization, leading to dramatic surface loss (by 70%); and (III) above 500°C, by grain growth. Concurrently, the UV-absorption edge shows red shifts during stages I and II and blue shifts during stage III, resulting in distinct color variations. The edge displacement bears a close correlation with a Raman ''defect band'' at ∼305-328 cm −1 .

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Section: Discussionmentioning

confidence: 99%

Evolution in Structural and Optical Properties of Stannic Oxide Xerogel upon Heat Treatment

Rusakova

et al. 1999

Journal of the American Ceramic Society

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“…2a along with other ratios. As can be seen, the spectrum is composed of four main transitions: M 45 (M)N 1 (M)N 23 (M), M 45 (M)N 23 (M)N 23 (M), M 45 (M)N 1 (M)V(M) and M 45 (M)N 23 (M)V(M) where the M in brackets stands for metallic, and located in the energy range of the reported values from literature 27 – 29 . In addition to these main transitions, a weak peak is observed at 161.7 eV and its origin is not determined (same peak has been observed by Tunable et al .…”

Section: Resultsmentioning

confidence: 85%

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

Azdad

Marot

Moser

et al. 2018

Sci Rep

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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 ZrOx. 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 ZrOx is given.

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An AES study of the oxidation of polycrystalline zirconium at room temperature and low oxygen pressures

Sanz

Palácio

Casas

et al. 1987

Surface & Interface Analysis

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Auger electron spectroscopy has been used to characterize the oxidation of polycrystalline zirconium in an oxygen atmosphere at low pressures (lo-* 6 Poz< lo-' Torr) and room temperature after cleaning the surface by Ar+-ion bombardment. Quantitative analysis of the oxidation process was performed by using the intensity of the line which is characteristic of the metallic zirconium. It is concluded from this work that oxidation proceeds as follows: (i) dissociative chemisorption for oxygen exposures lower than 2 L; (ii) formation of nuclei of oxide which grow until coalescence for exposures between 2 and 60 L; (iii) thickening of the oxide film grown in the previous stage. A limiting thickness of 1.5-2 nm is estimated.

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AES and EEL spectra from Zr, Zr + O2 and ZrO2; peak energy shifts and intensity variations at various stages of oxidation in the pressure range 10−6−103 Torr

Cited by 47 publications

References 22 publications

Evolution in Structural and Optical Properties of Stannic Oxide Xerogel upon Heat Treatment

Evolution in Structural and Optical Properties of Stannic Oxide Xerogel upon Heat Treatment

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

An AES study of the oxidation of polycrystalline zirconium at room temperature and low oxygen pressures

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