Vanadium oxide thin films and fibers obtained by acetylacetonate sol–gel method
Vanadium oxide films and fibers have been fabricated by the acetylacetonate sol–gel method followed by annealing in wet nitrogen. The samples are characterized by X-ray diffraction and electrical conductivity measurements. The effects of a sol aging, the precursor decomposition and the gas atmospher...
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creator | Berezina, O. Kirienko, D. Pergament, A. Stefanovich, G. Velichko, A. Zlomanov, V. |
description | Vanadium oxide films and fibers have been fabricated by the acetylacetonate sol–gel method followed by annealing in wet nitrogen. The samples are characterized by X-ray diffraction and electrical conductivity measurements. The effects of a sol aging, the precursor decomposition and the gas atmosphere composition on the annealing process, structure and properties of the films are discussed. The two-stage temperature regime of annealing of amorphous films in wet nitrogen for formation of the well crystallized VO2 phase is chosen: 1) 25–550°C and 2) 550–600°C. The obtained films demonstrate the metal–insulator transition and electrical switching. Also, the effect of the polyvinylpyrrolidone additive concentration and electrospinning parameters on qualitative (absence of defects and gel drops) and quantitative (length and diameter) characteristics of vanadium oxide fibers is studied.
•Vanadium oxide thin films and fibers are synthesized by sol–gel method.•The effect of annealing, atmosphere, time and electrospinning parameters is studied.•Produced VO2 structures exhibit metal–insulator transition and electrical switching. |
doi_str_mv | 10.1016/j.tsf.2014.11.058 |
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•Vanadium oxide thin films and fibers are synthesized by sol–gel method.•The effect of annealing, atmosphere, time and electrospinning parameters is studied.•Produced VO2 structures exhibit metal–insulator transition and electrical switching.</description><subject>Annealing</subject><subject>Diffraction</subject><subject>Electrospinning</subject><subject>Fibers</subject><subject>Metal–insulator transition</subject><subject>Resistivity</subject><subject>Sol gel process</subject><subject>Sol–gel method</subject><subject>Thin films</subject><subject>Vanadium dioxide</subject><subject>Vanadium oxides</subject><issn>0040-6090</issn><issn>1879-2731</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKBDEQRYMoOI5-gLss3XRblX7jSsQXDIigbkM6qTgZujvayYiz8x_8Q7_EHsa1m7q1uKegDmOnCCkCluerNAabCsA8RUyhqPfYDOuqSUSV4T6bAeSQlNDAITsKYQUAKEQ2Y48valDGrXvuP50hHpdu4NZ1feBqMNPW0hi4b6NyAxnebrjSFDfddvpBReLBdz9f36_U8Z7i0ptjdmBVF-jkL-fs-eb66eouWTzc3l9dLhKdZRATAZRnlS3KoiBDuhFW163JMUehrLK5LkxdgCFFRpRVpsiCFm2t87bBFhudzdnZ7u7b6N_XFKLsXdDUdWogvw4Sy6pqyqasq6mKu6oefQgjWfk2ul6NG4kgt_rkSk765FafRJSTvom52DE0_fDhaJRBOxo0GTeSjtJ49w_9Cy4mepI</recordid><startdate>20150101</startdate><enddate>20150101</enddate><creator>Berezina, O.</creator><creator>Kirienko, D.</creator><creator>Pergament, A.</creator><creator>Stefanovich, G.</creator><creator>Velichko, A.</creator><creator>Zlomanov, V.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-5771-3034</orcidid></search><sort><creationdate>20150101</creationdate><title>Vanadium oxide thin films and fibers obtained by acetylacetonate sol–gel method</title><author>Berezina, O. ; Kirienko, D. ; Pergament, A. ; Stefanovich, G. ; Velichko, A. ; Zlomanov, V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c330t-20e437f5655edec92fc8bd41412afaf4c5d850deaed2673aef0c2b8c4b91b19c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Annealing</topic><topic>Diffraction</topic><topic>Electrospinning</topic><topic>Fibers</topic><topic>Metal–insulator transition</topic><topic>Resistivity</topic><topic>Sol gel process</topic><topic>Sol–gel method</topic><topic>Thin films</topic><topic>Vanadium dioxide</topic><topic>Vanadium oxides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Berezina, O.</creatorcontrib><creatorcontrib>Kirienko, D.</creatorcontrib><creatorcontrib>Pergament, A.</creatorcontrib><creatorcontrib>Stefanovich, G.</creatorcontrib><creatorcontrib>Velichko, A.</creatorcontrib><creatorcontrib>Zlomanov, V.</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Thin solid films</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Berezina, O.</au><au>Kirienko, D.</au><au>Pergament, A.</au><au>Stefanovich, G.</au><au>Velichko, A.</au><au>Zlomanov, V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Vanadium oxide thin films and fibers obtained by acetylacetonate sol–gel method</atitle><jtitle>Thin solid films</jtitle><date>2015-01-01</date><risdate>2015</risdate><volume>574</volume><spage>15</spage><epage>19</epage><pages>15-19</pages><issn>0040-6090</issn><eissn>1879-2731</eissn><abstract>Vanadium oxide films and fibers have been fabricated by the acetylacetonate sol–gel method followed by annealing in wet nitrogen. The samples are characterized by X-ray diffraction and electrical conductivity measurements. The effects of a sol aging, the precursor decomposition and the gas atmosphere composition on the annealing process, structure and properties of the films are discussed. The two-stage temperature regime of annealing of amorphous films in wet nitrogen for formation of the well crystallized VO2 phase is chosen: 1) 25–550°C and 2) 550–600°C. The obtained films demonstrate the metal–insulator transition and electrical switching. Also, the effect of the polyvinylpyrrolidone additive concentration and electrospinning parameters on qualitative (absence of defects and gel drops) and quantitative (length and diameter) characteristics of vanadium oxide fibers is studied.
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subjects | Annealing Diffraction Electrospinning Fibers Metal–insulator transition Resistivity Sol gel process Sol–gel method Thin films Vanadium dioxide Vanadium oxides |
title | Vanadium oxide thin films and fibers obtained by acetylacetonate sol–gel method |
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