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Nanostructured films from phthalocyanine and carbon nanotubes: Surface morphology and electrical characterization

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dc.contributor.authorBrito, Jackeline B.
dc.contributor.authorGomes, Douglas J. C.
dc.contributor.authorJustina, Vanessa D.
dc.contributor.authorLima, Aline M. F.
dc.contributor.authorOlivati, Clarissa A. [UNESP]
dc.contributor.authorSilva, Josmary R.
dc.contributor.authorde Souza, Nara C.
dc.contributor.institutionUniv Fed Mato Grosso
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:32:26Z
dc.date.available2014-05-20T15:32:26Z
dc.date.issued2012-02-01
dc.description.abstractWe report on the investigation of the surface morphology and DC conductivity of nanostructured layer-by-layer (LbL) films from nickel tetrasulfonated phthalocyanine (NiTsPc) alternated with either multi-walled carbon nanotubes (MWNTs/NiTsPc) or multi-walled carbon nanotubes dispersed in chitosan (MWNTs + Ch/NiTsPc). We have explored the surface morphology of the films by using fractal concepts and dynamic scale laws. The MWNTs/NiTsPc LbL films were found to have a fractal dimension of ca. 2, indicating a quasi Euclidean surface. MWNTs + Ch/NiTsPc LbL films are described by the Lai-Das Sarma-Villain (LDV) model, which predicts the deposition of particles and their subsequent relaxation. An increase in the wetting contact angle of MWNTs + Ch/NiTsPc LbL films was observed, as compared with MWNTs/NiTsPc LbL films, which presented an increase in the fractal dimension of the first system. Room temperature conductivities were found be ca. 0.45 S/cm for MWNTs/NiTsPc and 1.35 S/cm for MWNTs + Ch/NiTsPc. (C) 2011 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Fed Mato Grosso, Grp Mat Nanoestruturados, Barra do Garcas, Mato Grosso, Brazil
dc.description.affiliationUniv Fed Mato Grosso, Lab Quim Bioorgan Araguaia, Barra do Garcas, Mato Grosso, Brazil
dc.description.affiliationUniv Estadual Paulista, UNESP, Fac Ciencias & Tecnol, Presidente Prudente, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Fac Ciencias & Tecnol, Presidente Prudente, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdLMF 11325
dc.format.extent467-471
dc.identifierhttp://dx.doi.org/10.1016/j.jcis.2011.10.004
dc.identifier.citationJournal of Colloid and Interface Science. San Diego: Academic Press Inc. Elsevier B.V., v. 367, p. 467-471, 2012.
dc.identifier.doi10.1016/j.jcis.2011.10.004
dc.identifier.issn0021-9797
dc.identifier.lattes9822212808651415
dc.identifier.orcid0000-0002-0114-6795
dc.identifier.urihttp://hdl.handle.net/11449/41339
dc.identifier.wosWOS:000299407500061
dc.language.isoeng
dc.publisherAcademic Press Inc. Elsevier B.V.
dc.relation.ispartofJournal of Colloid and Interface Science
dc.relation.ispartofjcr5.091
dc.relation.ispartofsjr1,221
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectMulti-walled carbon nanotubesen
dc.subjectNickel tetrasulfonated phthalocyanineen
dc.subjectLayer-by-layer (LbL) self-assembly filmsen
dc.subjectWetting contact angleen
dc.subjectDC electrical conductivityen
dc.subjectLDV modelen
dc.titleNanostructured films from phthalocyanine and carbon nanotubes: Surface morphology and electrical characterizationen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderAcademic Press Inc. Elsevier B.V.
dspace.entity.typePublication
unesp.author.lattes9822212808651415[5]
unesp.author.orcid0000-0002-0114-6795[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept
unesp.departmentFísica, Química e Biologia - FCTpt

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Presidente Prudente - FCT - Faculdade de Ciências e Tecnologia