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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleElectrochemical and Structural Characterization of Polymer Gel Electrolytes Based on a PEO Copolymer and an Imidazolium-Based Ionic Liquid for Dye-Sensitized Solar Cellspt_BR
dc.contributor.authorFreitas, FSpt_BR
dc.contributor.authorde Freitas, JNpt_BR
dc.contributor.authorIto, BIpt_BR
dc.contributor.authorDe Paoli, MApt_BR
dc.contributor.authorNogueira, AFpt_BR
unicamp.author.emailanaflavia@iqm.unicamp.brpt_BR
unicamp.authorFreitas, Flavio S. de Freitas, Jilian N. Ito, Bruno I. De Paoli, Marco-A. Nogueira, Ana F. Univ Estadual Campinas, LNES, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjectdye-sensitized solar cellspt_BR
dc.subjectpolymer gel electrolytept_BR
dc.subjectionic liquidpt_BR
dc.subjectstabilitypt_BR
dc.subject.wosPolycrystalline Tio2 Electrodespt_BR
dc.subject.wosTemperature Molten-saltspt_BR
dc.subject.wosFlat-band Potentialspt_BR
dc.subject.wosSolid-statept_BR
dc.subject.wosHigh-efficiencypt_BR
dc.subject.wosSpectroscopic Determinationpt_BR
dc.subject.wosRuthenium Sensitizerpt_BR
dc.subject.wosOrganic-dyespt_BR
dc.subject.wosPerformancept_BR
dc.subject.wosPhotocurrentpt_BR
dc.description.abstractPolymer electrolytes based on mixtures of poly(ethylene oxide-co-propylene oxide) and 1-methyl-3-propyl-imidazolium iodide (MPII) were investigated, aiming at their application in dye-sensitized solar cells (DSSC). The interactions between the copolymer and the ionic liquid were analyzed by infrared spectroscopy and (1)H NMR. The results show interactions between the ether oxygen in the polymer and the hydrogen in the imidazolium cations. The ionic conductivities, electrochemical behaviors, and thermal properties of the electrolytes containing different concentrations of MPII were investigated. The electrolyte containing 70 wt % MPII presented the highest ionic conductivity (2.4 x 10(-3) S cm(-1)) and a diffusion coefficient of 1.9 x 10(-7) cm(2) s(-1). The influence of Lil addition to the electrolytes containing different concentrations of MPII was also investigated. The DSSC assembled with the electrolyte containing 70 wt % MPII showed an efficiency of 3.84% at 100 mW cm(-2). The stability of the devices for a period of 30 days was also evaluated using sealed cells. The devices assembled with the electrolyte containing less ionic liquid showed to be more stable.pt
dc.relation.ispartofAcs Applied Materials & Interfacespt_BR
dc.relation.ispartofabbreviationACS Appl. Mater. Interfacespt_BR
dc.publisher.cityWashingtonpt_BR
dc.publisher.countryEUApt_BR
dc.publisherAmer Chemical Socpt_BR
dc.date.issued2009pt_BR
dc.date.monthofcirculationDECpt_BR
dc.identifier.citationAcs Applied Materials & Interfaces. Amer Chemical Soc, v. 1, n. 12, n. 2870, n. 2877, 2009.pt_BR
dc.language.isoenpt_BR
dc.description.volume1pt_BR
dc.description.issuenumber12pt_BR
dc.description.firstpage2870pt_BR
dc.description.lastpage2877pt_BR
dc.rightsfechadopt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn1944-8244pt_BR
dc.identifier.wosidWOS:000273005500025pt_BR
dc.identifier.doi10.1021/am900596xpt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.date.available2014-11-18T17:43:53Z
dc.date.available2015-11-26T17:52:54Z-
dc.date.accessioned2014-11-18T17:43:53Z
dc.date.accessioned2015-11-26T17:52:54Z-
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dc.description.provenanceMade available in DSpace on 2015-11-26T17:52:54Z (GMT). No. of bitstreams: 2 WOS000273005500025.pdf: 1123498 bytes, checksum: 89a9be7e0f224c13a4a9511face7e82b (MD5) WOS000273005500025.pdf.txt: 40813 bytes, checksum: 4a901be5d0bd53c6830c7b71a5da8a9c (MD5) Previous issue date: 2009en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/65136pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/65136
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/65136-
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