Selective Gamma-Ray Ionisation of Vanadium Oxides: Towards the Formation of VO2-Reference-Cited by-同舟云学术

Selective Gamma-Ray Ionisation of Vanadium Oxides: Towards the Formation of VO2

Published:2023-12-20 Issue: Volume:2 Page:
ISSN:3005-2602
Container-title:Nano-Horizons: Journal of Nanosciences and Nanotechnologies
language:
Short-container-title:NH

Author:

Ndiaye M.,Sakh O.,Seck A.,Ngom B. D.,Maaza M.,Chaker M.

Abstract

In this study, we report on the valence control of vanadium oxidation states towards stabilising VO2 thin films. X-ray diffraction measurements indicate that up to 300 kGy of gamma-ray radiation the VO2 phase remains monoclinic, with the crystallite size only varying slightly with the dose. X-ray photoemission spectroscopy indicates the presence of three oxide phases (VO2, V2O3 and V2O5) on the samples. A decrease in the oxidation states of V3+ and V5+ and an increase in the valence state V4+ are observed for irradiations up to 300 kGy, which favours the vanadium dioxide VO2 formation.

Publisher

UNISA Press

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