M. Ndiaye, O. Sakh, A. Seck, B. Ngom, M. Maaza, M. Chaker
{"title":"氧化钒的选择性伽马射线电离：生成二氧化钒","authors":"M. Ndiaye, O. Sakh, A. Seck, B. Ngom, M. Maaza, M. Chaker","doi":"10.25159/3005-2602/14875","DOIUrl":null,"url":null,"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.","PeriodicalId":210951,"journal":{"name":"Nano-Horizons: Journal of Nanosciences and Nanotechnologies","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Selective Gamma-Ray Ionisation of Vanadium Oxides: Towards the Formation of VO2\",\"authors\":\"M. Ndiaye, O. Sakh, A. Seck, B. Ngom, M. Maaza, M. Chaker\",\"doi\":\"10.25159/3005-2602/14875\",\"DOIUrl\":null,\"url\":null,\"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.\",\"PeriodicalId\":210951,\"journal\":{\"name\":\"Nano-Horizons: Journal of Nanosciences and Nanotechnologies\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-12-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nano-Horizons: Journal of Nanosciences and Nanotechnologies\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.25159/3005-2602/14875\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano-Horizons: Journal of Nanosciences and Nanotechnologies","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.25159/3005-2602/14875","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Selective Gamma-Ray Ionisation of Vanadium Oxides: Towards the Formation of VO2
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.
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