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dc.contributor.authorBarea, Eva M.
dc.contributor.authorCaballero, Rubén
dc.contributor.authorLópez Arroyo, Leticia
dc.contributor.authorDe la Cruz, Pilar
dc.contributor.authorLanga, Fernando
dc.contributor.authorBisquert, Juan
dc.contributor.authorGuerrero, Antonio
dc.date.accessioned2012-05-31T07:16:30Z
dc.date.available2012-05-31T07:16:30Z
dc.date.issued2011
dc.identifier.citationChemPhysChem (2011) vol. 12, no. 5, pp. 961-965ca_CA
dc.identifier.issn1439-4235
dc.identifier.issn1439-7641
dc.identifier.urihttp://hdl.handle.net/10234/39400
dc.description.abstractPorphyrins are promising sensitizers for dye solar cells (DSCs) but narrow absorption bands at 400-450 and 500-650 nm limit their light-harvesting properties. Increasing elongation of the π-conjugation and loss of symmetry causes broadening and a red-shift of the absorption bands, which considerably improves the performance of the DSC. Herein we use an oligothienylenevinylene to bridge a Zn-porphyrin system and the anchoring group of the sensitizer. We separately study the performance of the two basic units: oligothienylenevinylene and Zn-porphyrin. The combined system provides a three-fold enhancement of the photocurrent with respect to parent dyes. This is caused by an additional strong absorption in the region 400-650 nm that leads to flat IPCE of 60%. Theoretical calculations support that the addition of the oligothienylenevinylene unit as a linking bridge creates a charge transfer band that transforms a Zn-porphyrin dye into a push-pull type system with highly efficient charge injection propertiesca_CA
dc.format.extent15 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherWiley-VCH Verlag Berlinca_CA
dc.relation.isFormatOfVersió pre-print del document publicat a: http://www.elp.uji.es/recursos/paper109.pdfca_CA
dc.rights© Wiley-VCH Verlag Berlinca_CA
dc.subjectDye solar cellsca_CA
dc.subjectZn-porphyrin sensitizersca_CA
dc.subject.lcshSolar cellsca_CA
dc.subject.otherCèl·lules solarsca_CA
dc.titleTriplication of the photocurrent in dye solar cells by increasing the elongation of the π-conjugation in Zn-porphyrin sensitizersca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1002/cphc.201000958
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA


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