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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleEffect of the electrolyte cations and anions on the photocurrent of dodecylsulphate doped polypyrrole filmspt_BR
dc.contributor.authorMartini, Mpt_BR
dc.contributor.authorDe Paoli, MApt_BR
unicamp.authorUniv Campinas, UNICAMP, Lab Poliimeros Condutores, Inst Quim, BR-13080970 Campinas, SP, Brazilpt_BR
dc.subjectintrinsically conducting polymerpt_BR
dc.subjectphotoelectrochemical measurementpt_BR
dc.subjectband modelpt_BR
dc.subjectphotocurrent voltammetrypt_BR
dc.subjectabsorption spectroscopypt_BR
dc.subject.wosDevice Combining Polypyrrolept_BR
dc.subject.wosQuartz-crystal Microbalancept_BR
dc.subject.wosDodecyl-sulfate Filmspt_BR
dc.subject.wosConjugated Polymerspt_BR
dc.subject.wosAqueous-solutionspt_BR
dc.subject.wosIonic Exchangespt_BR
dc.subject.wosBipolaronspt_BR
dc.subject.wosPolaronspt_BR
dc.subject.wosWo3pt_BR
dc.description.abstractPhotoelectrochemical and UV-Vis spectroelectrochemical measurements were performed in a three-electrode cell containing dodecylsulphate-doped polypyrrole films as active layers in contact with different aqueous electrolytes. The effect of both cations and anions of the electrolyte on the photocurrent generation and on the absorption spectra of the system was studied. Dynamic photocurrent and absorption spectra measurements performed during the redox cycles of the films show that both cation and anion insertion and deinsertion occurs during the cycles. These results are in agreement with the previously reported redox mechanism proposed for amphiphilic anion doped polypyrrole. Reduced films show cathodic photocurrent at -0.4 > E > -0.8 V vs. Ag\AgCl. Photocurrent voltammograms are reproducible after the conditioning of the films and the higher cathodic currents were observed in films with thickness of similar to0.05-0.5 mum. (C) 2002 Elsevier Science B.V. All rights reserved.pt
dc.relation.ispartofSolar Energy Materials And Solar Cellspt_BR
dc.relation.ispartofabbreviationSol. Energy Mater. Sol. Cellspt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryHolandapt_BR
dc.publisherElsevier Science Bvpt_BR
dc.date.issued2002pt_BR
dc.date.monthofcirculationJULpt_BR
dc.identifier.citationSolar Energy Materials And Solar Cells. Elsevier Science Bv, v. 73, n. 3, n. 235, n. 247, 2002.pt_BR
dc.language.isoenpt_BR
dc.description.volume73pt_BR
dc.description.issuenumber3pt_BR
dc.description.firstpage235pt_BR
dc.description.lastpage247pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policypt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0927-0248pt_BR
dc.identifier.wosidWOS:000176094600002pt_BR
dc.identifier.doi10.1016/S0927-0248(01)00133-7pt_BR
dc.date.available2014-11-18T19:43:30Z
dc.date.available2015-11-26T16:58:15Z-
dc.date.accessioned2014-11-18T19:43:30Z
dc.date.accessioned2015-11-26T16:58:15Z-
dc.description.provenanceMade available in DSpace on 2014-11-18T19:43:30Z (GMT). No. of bitstreams: 1 WOS000176094600002.pdf: 227912 bytes, checksum: 40832f17e4ae5b9487099d36ca6c2ce2 (MD5) Previous issue date: 2002en
dc.description.provenanceMade available in DSpace on 2015-11-26T16:58:15Z (GMT). No. of bitstreams: 2 WOS000176094600002.pdf: 227912 bytes, checksum: 40832f17e4ae5b9487099d36ca6c2ce2 (MD5) WOS000176094600002.pdf.txt: 29895 bytes, checksum: b53045e468cbdb87e50ae62251ff13ad (MD5) Previous issue date: 2002en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/63949pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/63949
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/63949-
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