Study of ITO@PMMA composites by transmission electron microscopy

Página do item simplificado
dc.contributor.authorArlindo, Elen P. S. [UNESP]
dc.contributor.authorOrlandi, Marcelo Ornaghi [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:26:02Z
dc.date.available2014-05-27T11:26:02Z
dc.date.issued2011-10-03
dc.description.abstractITO nanowires were synthesized by carbothermal reduction process, using a co-evaporation method, and have controlled size, shape, and chemical composition. The electrical measurements of nanowires showed they have a resistance of about 102 Ω. In order to produce nanocomposites films, nanowires were dispersed in toluene using an ultrasonic cleaner, so the PMMA polymer was added, and the system was kept under agitation up to obtain a clear suspension. The PMMA polymer was filled with 1, 2, 5 and 10% in weight of nanowires, and the films were done by tape casting. The results showed that the electrical resistance of nanocomposites changed by over 7 orders of magnitude by increasing the amount of filler, and using 5 wt% of filler the composite resistance decreased from 1010 Ω to about 104 Ω, which means that percolation threshold of wires occurred at this concentration. This is an interesting result once for nanocomposites filled with ITO nanoparticles is necessary about 18% in weight to obtain percolation. The addition of filler up to 10 wt% decreased the resistance of the composite to 103 Ω, which is a value close to the resistance of wires. The composites were also analyzed by transmission electron microscopy (TEM), and the TEM results are in agreement with the electrical ones about percolation of nanowires. These results are promising once indicates that is possible to produce conductive and transparent in the visible range films by the addition of ITO nanowires in a polymeric matrix using a simple route. © 2011 Materials Research Society.en
dc.description.affiliationDepartment of Physical Chemistry São Paulo State University CEP 14801-970, P.O. Box 355, Araraquara, SP
dc.description.affiliationUnespDepartment of Physical Chemistry São Paulo State University CEP 14801-970, P.O. Box 355, Araraquara, SP
dc.format.extent183-188
dc.identifierhttp://dx.doi.org/10.1557/opl.2011.217
dc.identifier.citationMaterials Research Society Symposium Proceedings, v. 1312, p. 183-188.
dc.identifier.doi10.1557/opl.2011.217
dc.identifier.issn0272-9172
dc.identifier.lattes2305581567093057
dc.identifier.scopus2-s2.0-80053262833
dc.identifier.urihttp://hdl.handle.net/11449/72733
dc.language.isoeng
dc.relation.ispartofMaterials Research Society Symposium Proceedings
dc.relation.ispartofsjr0,139
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectChemical compositions
dc.subjectCo-evaporation method
dc.subjectControlled size
dc.subjectElectrical measurement
dc.subjectElectrical resistances
dc.subjectITO nanowires
dc.subjectOrders of magnitude
dc.subjectPercolation thresholds
dc.subjectPolymeric matrices
dc.subjectTape casting
dc.subjectUltrasonic cleaners
dc.subjectVisible range
dc.subjectCarbothermal reduction
dc.subjectConductive films
dc.subjectFillers
dc.subjectNanocomposite films
dc.subjectNanocomposites
dc.subjectNanowires
dc.subjectPolymer films
dc.subjectPolymeric films
dc.subjectSolvents
dc.subjectToluene
dc.subjectTransmission electron microscopy
dc.subjectUltrasonic cleaning
dc.subjectWire
dc.subjectFilled polymers
dc.titleStudy of ITO@PMMA composites by transmission electron microscopyen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://journals.cambridge.org/action/displaySpecialPage?pageId=4676
unesp.author.lattes2305581567093057
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

Arquivos

Coleções

Artigos - Físico Química - IQ