Electrical and spectroelectrochemical investigation of thiophene-based donor-acceptor copolymers with 3,4-ethylenedioxythiophene

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dc.creatorMarcus Henrique de Araujo
dc.creatorTulio Matencio
dc.creatorClaudio Luis Donnici
dc.creatorHállen Daniel Rezende Calado
dc.date.accessioned2023-07-27T18:09:41Z
dc.date.accessioned2025-09-08T23:45:16Z
dc.date.available2023-07-27T18:09:41Z
dc.date.issued2020
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1590/0104-1428.03519
dc.identifier.issn1678-5169
dc.identifier.urihttps://hdl.handle.net/1843/57066
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofPolímeros
dc.rightsAcesso Aberto
dc.subjectEletroquímica
dc.subjectFísico-química
dc.subjectPolímeros condutores
dc.subjectCopolímeros
dc.subjectAnálise espectral
dc.subjectEspectroscopia de impedância
dc.subjectEspectrofotometria
dc.subject.otherDonor-acceptor copolymers
dc.subject.otherElectrical behavior
dc.subject.otherPolythiophenes
dc.subject.otherSpectroelectrochemistry
dc.titleElectrical and spectroelectrochemical investigation of thiophene-based donor-acceptor copolymers with 3,4-ethylenedioxythiophene
dc.typeArtigo de periódico
local.citation.issue1
local.citation.volume30
local.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.
local.identifier.orcidhttps://orcid.org/0000-0001-9079-9159
local.identifier.orcidhttps://orcid.org/0000-0002-5660-8125
local.identifier.orcidhttps://orcid.org/0000-0001-8296-6682
local.identifier.orcidhttps://orcid.org/0000-0002-4215-8848
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/po/a/sQb4NDmNctVynYXPcGfxtQh/

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