Synthesis, characterization and introduction of a new ion-coordinating ruthenium sensitizer dye in quasi-solid state TiO2 solar cells

dc.creatorWhite, RC
dc.creatorBenedetti, JE
dc.creatorGoncalves, AD
dc.creatorRomao, W
dc.creatorVaz, BG
dc.creatorEberlin, MN
dc.creatorCorreia, CRD
dc.creatorDe Paoli, MA
dc.creatorNogueira, AF
dc.date2011
dc.date38534
dc.date2014-08-01T18:27:37Z
dc.date2015-11-26T18:04:27Z
dc.date2014-08-01T18:27:37Z
dc.date2015-11-26T18:04:27Z
dc.date.accessioned2018-03-29T00:46:35Z
dc.date.available2018-03-29T00:46:35Z
dc.identifierJournal Of Photochemistry And Photobiology A-chemistry. Elsevier Science Sa, v. 222, n. 1, n. 185, n. 191, 2011.
dc.identifier1010-6030
dc.identifierWOS:000295241600027
dc.identifier10.1016/j.jphotochem.2011.05.020
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79284
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79284
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1292855
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionA new ion-coordinating heteroleptic ruthenium(II) dye was synthesized by attaching two crown ether moieties in the 4,4' positions of one of the bipyridine ligands. This new dye (named as RC730) was characterized by UV-Vis spectroscopy, CHN elemental analysis, NMR and electrospray ionization Fourier transform-ion cyclotron resonance mass spectrometry (ESI FT-ICR MS). In order to investigate the properties of these ion-coordinating species, dye-sensitized solar cells were assembled with a gel polymer electrolyte based on two different cations: lithium and sodium. The devices were characterized by J-V curves under 100 mW cm(-2), incident photon to current conversion efficiency spectra (IPCE) and photovoltage decay transients under open-circuit conditions. The solar cells based on the new heteroleptic dye provided higher photocurrent and photovoltage when lithium was used in the electrolyte instead of sodium cations, reaching overall conversion efficiencies up to 2%. This behavior might be related to the ability of the ion-coordinating RC730 dye to trap Li ions, minimizing the conduction band edge shift. When the polymer electrolyte based on lithium is used, the IPCE spectra show a maximum efficiency of 31% at the maximum absorption peak of the RC730 dye (ca. 530 nm). (C) 2011 Elsevier B.V. All rights reserved.
dc.description222
dc.description1
dc.description185
dc.description191
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionNational Science Foundation (USA)
dc.descriptionRenami
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [06/58998-3, 08/51001-9]
dc.languageen
dc.publisherElsevier Science Sa
dc.publisherLausanne
dc.publisherSuíça
dc.relationJournal Of Photochemistry And Photobiology A-chemistry
dc.relationJ. Photochem. Photobiol. A-Chem.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectIon-coordinating dye
dc.subjectHeteroleptic sensitizer
dc.subjectGel polymer electrolyte
dc.subjectQuasi-solid state solar cells
dc.subjectTandem Mass-spectrometry
dc.subjectFlat-band Potentials
dc.subjectOpen-circuit Voltage
dc.subjectGel Electrolyte
dc.subjectSpectroscopic Determination
dc.subjectTetraruthenated Porphyrins
dc.subjectCharge Recombination
dc.subjectPolymer Electrolyte
dc.subjectLiquid Electrolyte
dc.subjectNanoporous Tio2
dc.titleSynthesis, characterization and introduction of a new ion-coordinating ruthenium sensitizer dye in quasi-solid state TiO2 solar cells
dc.typeArtículos de revistas


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