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  • Title: Effect of hydrocarbon chain length of amphiphilic ruthenium dyes on solid-state dye-sensitized photovoltaics.
    Author: Schmidt-Mende L, Kroeze JE, Durrant JR, Nazeeruddin MK, Grätzel M.
    Journal: Nano Lett; 2005 Jul; 5(7):1315-20. PubMed ID: 16178230.
    Abstract:
    We studied the influence of the hydrophobic hydrocarbon chain length of amphiphilic ruthenium dyes on the device performance in solid-state dye-sensitized solar cells. We found that the dyes with longer hydrocarbon chains gave higher efficiency values when used as a sensitizer in solid-state dye-sensitized solar cells. With increasing chain length, we observed higher currents and open-circuit voltages up to a limiting chain length. We attribute this improvement to the expected larger distance between TiO2 and the hole conductor, which seems to suppress recombination effectively.
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