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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/57066
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dc.creatorMarcus Henrique de Araujopt_BR
dc.creatorTulio Matenciopt_BR
dc.creatorClaudio Luis Donnicipt_BR
dc.creatorHállen Daniel Rezende Caladopt_BR
dc.date.accessioned2023-07-27T18:09:41Z-
dc.date.available2023-07-27T18:09:41Z-
dc.date.issued2020-
dc.citation.volume30pt_BR
dc.citation.issue1pt_BR
dc.identifier.doihttps://doi.org/10.1590/0104-1428.03519pt_BR
dc.identifier.issn1678-5169pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/57066-
dc.description.resumoThis work reports the spectroelectrochemical and electrical behavior of electropolymerized donor-acceptor like (D-A) copolymer films, based on 3,4-ethylenedioxythiophene (EDOT) and beta-substituted electron-acceptor thiophenes. Initially, the copolymer films were deposited on indium tin oxide substrates, which spectroelectrochemistry measurements were carried out with an UV-Vis spectrophotometer. Hence, it was possible to observe the electrochromic properties of these materials, visualizing the color changing towards different potentials applied. The experiments have shown that these D-A like copolymers presented good electrochromic properties, such as optical contrast, coloration efficiency, and switching times. Additionally, films prepared on a platinum working electrode were investigated by electrochemical impedance spectroscopy, which has shown the electrical behavior of those copolymers and their potential as candidates to capacitive devices building. Therefore, the combination of electron-donor EDOT with those electron-acceptor monomers is indeed a useful strategy to tailoring and fine-tuning the physicochemical properties of polythiophenes with innovative applications.pt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)pt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofPolímerospt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectDonor-acceptor copolymerspt_BR
dc.subjectElectrical behaviorpt_BR
dc.subjectPolythiophenespt_BR
dc.subjectSpectroelectrochemistrypt_BR
dc.subject.otherEletroquímicapt_BR
dc.subject.otherFísico-químicapt_BR
dc.subject.otherPolímeros condutorespt_BR
dc.subject.otherCopolímerospt_BR
dc.subject.otherAnálise espectralpt_BR
dc.subject.otherEspectroscopia de impedânciapt_BR
dc.subject.otherEspectrofotometriapt_BR
dc.titleElectrical and spectroelectrochemical investigation of thiophene-based donor-acceptor copolymers with 3,4-ethylenedioxythiophenept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.scielo.br/j/po/a/sQb4NDmNctVynYXPcGfxtQh/pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9079-9159pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5660-8125pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-8296-6682pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4215-8848pt_BR
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