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Title

Porous one-dimensional photonic crystals improve the power-conversion efficiency of dye-sensitized solar cells

AuthorsColodrero, Silvia CSIC; Mihi, Agustín CSIC ORCID ; Häggman, Leif; Ocaña, Manuel CSIC ORCID; Boschloo, Gerrit; Hagfeldt, Anders; Míguez, Hernán CSIC ORCID
Issue Date2009
PublisherUnited Nations Industrial Development Organization
CitationAdvanced Materials 21: 764- 770 (2009)
AbstractA device for solar-energy conversion was introduced in which a porous and highly reflecting 1D photonic crystal (1D PC) was coupled to a dye-sensitized nanocrystals anatase (NC-TiO2) electrode. The results show that the transparency of the PC-based dye-sensitized solar cells (DSSC) in the visible range of the electromagnetic spectrum is very similar to that of the reference cell. The multilayer whose photonic bandgap has a larger overlap with the absorption band of the ruthenium dye, gives rise to a larger enhancement of the photocurrent. It is also seen that the porous 0.5μm thick PC, whose deleterious effect is compensated by the large increment in photocurrent. The spectral photoelectric response of the cell clearly shows the effect that coupling to a PC has on the current photogenerated in the dye-sensitized electrode.
URIhttp://hdl.handle.net/10261/101396
DOI10.1002/adma.200703115
Identifiersdoi: 10.1002/adma.200703115
issn: 0935-9648
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