Effect of structural anisotropy on electrical and magnetic properties of polyaniline conducting films

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dc.contributor.authorFedorko, P.
dc.contributor.authorFaure-Vincent, J.
dc.contributor.authorFier, I. [UNESP]
dc.contributor.authorWalmsley, L. [UNESP]
dc.contributor.authorSniechowski, M.
dc.contributor.authorJacquot, J. F.
dc.contributor.authorPron, A.
dc.contributor.authorTravers, J. P.
dc.contributor.authorDjurado, D.
dc.contributor.institutionSlovak University of Technology
dc.contributor.institutionCEA Grenoble
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionAGH University of Science and Technology
dc.contributor.institutionWarsaw University of Technology
dc.date.accessioned2014-05-27T11:28:40Z
dc.date.available2014-05-27T11:28:40Z
dc.date.issued2013-03-12
dc.description.abstractIt is shown that highly conducting films of polyaniline protonated with di-esters of sulfosuccinic and sulfophthalic acids which contain alkyl- or alkoxy-type substituents exhibit highly anisotropic structural, electrical and magnetic properties. The layered-like structure of these films can be described as consisting of polyaniline chains which are mainly oriented parallel to the plane of the film and form regular out-of-plane stacks. These stacks are separated by bilayers of the dopant anions. Accordingly, the main anisotropy observed for solution cast films implies in-plane and out-of-plane measurements. An electrical anisotropy of about 80 is found for the in-plane and out-of-plane electronic conductivities at 5 K. The temperature dependences of the in-plane and out-of-plane conductivities are qualitatively similar and have been fitted as a series combination of variable-range-hopping-type and power law contributions. A maximum is observed in the temperature dependence of the electrical anisotropy at low temperature. The films also show a clear anisotropy of magnetization whose temperature and field characteristics depend on the chemical structure of the dopant anion. © 2013 Elsevier B.V.en
dc.description.affiliationDepartment of Chemical Physics Faculty of Chemical and Food Technology Slovak University of Technology, SK-81237 Bratislava
dc.description.affiliationInstitut Nanosciences et Cryogénie SPrAM (UMR5819, CEA-CNRS-UJF) CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble cedex 9
dc.description.affiliationDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista (UNESP), Caixa Postal 178, CEP 13500-970, Rio Claro, São Paulo
dc.description.affiliationFaculty of Physics AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Krakow
dc.description.affiliationFaculty of Chemistry Warsaw University of Technology, Noakowskiego 3, 00664, Warsaw
dc.description.affiliationUnespDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista (UNESP), Caixa Postal 178, CEP 13500-970, Rio Claro, São Paulo
dc.format.extent63-69
dc.identifierhttp://dx.doi.org/10.1016/j.synthmet.2013.01.017
dc.identifier.citationSynthetic Metals, v. 166, n. 1, p. 63-69, 2013.
dc.identifier.doi10.1016/j.synthmet.2013.01.017
dc.identifier.issn0379-6779
dc.identifier.scopus2-s2.0-84874671572
dc.identifier.urihttp://hdl.handle.net/11449/74823
dc.identifier.wosWOS:000317453800010
dc.language.isoeng
dc.relation.ispartofSynthetic Metals
dc.relation.ispartofjcr2.526
dc.relation.ispartofsjr0,672
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAnisotropy
dc.subjectConductivity
dc.subjectMagnetic properties
dc.subjectPolyaniline
dc.subjectStructure
dc.subjectBi-layer
dc.subjectElectrical and magnetic property
dc.subjectElectrical anisotropy
dc.subjectElectronic conductivity
dc.subjectLow temperatures
dc.subjectOut-of-plane
dc.subjectPolyaniline chains
dc.subjectPower-law contribution
dc.subjectProtonated
dc.subjectSolution-cast films
dc.subjectStructural anisotropy
dc.subjectTemperature dependence
dc.subjectElectric conductivity
dc.subjectNegative ions
dc.subjectStructure (composition)
dc.subjectTemperature distribution
dc.subjectConductive films
dc.titleEffect of structural anisotropy on electrical and magnetic properties of polyaniline conducting filmsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

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