Photocurrent enhancement in dye-sensitized photovoltaic devices with titania–graphene composite electrodes
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Otros documentos de la autoría: Durantini, Javier; Boix, Pablo P; Gervaldo, Miguel; Morales, Gustavo M.; Otero, Luis; Bisquert, Juan; Barea, Eva M
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
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Título
Photocurrent enhancement in dye-sensitized photovoltaic devices with titania–graphene composite electrodesAutoría
Fecha de publicación
2012Editor
ElsevierISSN
1572-6657Cita bibliográfica
Journal of Electroanalytical Chemistry Volume 683, 1 September 2012, Pages 43–46Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S1572665712002937Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Photovoltaic performance of dye-sensitized solar cell (DSC) devices based on a new titania–graphene paste has been investigated using Impedance Spectroscopy (IS) technique. The results provide key information about ... [+]
Photovoltaic performance of dye-sensitized solar cell (DSC) devices based on a new titania–graphene paste has been investigated using Impedance Spectroscopy (IS) technique. The results provide key information about device performance, clarifying that photocurrent increment is not related to lower charge transfer resistance, neither with a downshift of the Fermi level of the graphene titania semiconductor. The DSC devices constructed using titania–graphene paste and graphene thin films reach higher photocurrent and therefore higher efficiency than devices made with a commercial paste due to extra photocurrent generation, because the titania–graphene paste presents higher light harvesting in the visible region of the solar spectra combined with large scatter effect than the commercial titania paste. [-]
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Journal of Electroanalytical Chemistry, 2012, Vol. 683, Num. 1Derechos de acceso
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