Preparation and structural-optical characterization of dip-coated nanostructured Co-doped ZnO dilute magnetic oxide thin films

dc.contributor.authorValério, L. R.
dc.contributor.authorMamani, N. C.
dc.contributor.authorDe Zevallos, A. O.
dc.contributor.authorMesquita, A. [UNESP]
dc.contributor.authorBernardi, M. I.B.
dc.contributor.authorDoriguetto, A. C.
dc.contributor.authorDe Carvalho, H. B.
dc.contributor.institutionUniversidade Federal de Alfenas-UNIFAL-MG
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-12-11T17:11:14Z
dc.date.available2018-12-11T17:11:14Z
dc.date.issued2017-01-01
dc.description.abstractZnO-based materials are one of the most studied systems. Their applicability spans over several research areas and industries, like optoelectronics, catalysis and spintronics. Here we demonstrate the feasibility to prepare Co-doped ZnO thin films (Zn1−xCoxO, with x = 0; 0.01; 0.03 and 0.05) deposited by the dip-coating technique, a very simple and a low-cost process. We focus the structural and the optical characterization in the context of dilute magnetic materials. Detailed analyses were carried out to investigate alternative sources of ferromagnetism, such as secondary phases and nanocrystals embedded in the nanostructured thin films. Conjugating different techniques, we confirmed the Zn replacement by Co ions in the ZnO wurtzite structure with no secondary phases up to x = 0.05. It was further observed that the major structural defects in the films are oxygen vacancies (VO) and zinc interstices (Zni), and that the relative densities of these defects increase with the increase in Co concentration, which promotes the studied thin films to candidates to present room temperature ferromagnetism.en
dc.description.affiliationInstituto de Ciências Exatas Universidade Federal de Alfenas-UNIFAL-MG
dc.description.affiliationInstituto de Química Universidade Federal de Alfenas-UNIFAL-MG
dc.description.affiliationDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista-UNESP
dc.description.affiliationInstituto de Física de São Carlos Universidade de São Paulo-USP
dc.description.affiliationUnespDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista-UNESP
dc.description.sponsorshipFinanciadora de Estudos e Projetos
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFinanciadora de Estudos e Projetos: 134/08
dc.description.sponsorshipIdFAPESP: 2013/07909-4
dc.description.sponsorshipIdCNPq: 308162/2015-3
dc.description.sponsorshipIdCNPq: 448723/2014-0
dc.description.sponsorshipIdCNPq: 470069/2013-9
dc.description.sponsorshipIdFAPEMIG: APQ-00273-14
dc.description.sponsorshipIdFAPEMIG: APQ-02486-14
dc.description.sponsorshipIdCAPES: PNPD-2011
dc.format.extent20611-20619
dc.identifierhttp://dx.doi.org/10.1039/c7ra01200d
dc.identifier.citationRSC Advances, v. 7, n. 33, p. 20611-20619, 2017.
dc.identifier.doi10.1039/c7ra01200d
dc.identifier.file2-s2.0-85017502925.pdf
dc.identifier.issn2046-2069
dc.identifier.scopus2-s2.0-85017502925
dc.identifier.urihttp://hdl.handle.net/11449/174465
dc.language.isoeng
dc.relation.ispartofRSC Advances
dc.relation.ispartofsjr0,863
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titlePreparation and structural-optical characterization of dip-coated nanostructured Co-doped ZnO dilute magnetic oxide thin filmsen
dc.typeArtigo
unesp.author.lattes2835864951583089[4]
unesp.author.orcid0000-0001-8524-0959[4]

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