1. Effect of hydrocarbon chain length of amphiphilic ruthenium dyes on solid-state dye-sensitized photovoltaics.
- Author
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Schmidt-Mende L, Kroeze JE, Durrant JR, Nazeeruddin MK, and Grätzel M
- Subjects
- Electric Conductivity, Electrochemistry methods, Equipment Design, Equipment Failure Analysis, Hydrocarbons analysis, Materials Testing, Molecular Conformation, Nanostructures radiation effects, Photochemistry methods, Ruthenium Compounds radiation effects, Titanium analysis, Electric Power Supplies, Electrochemistry instrumentation, Hydrocarbons chemistry, Light, Nanostructures chemistry, Photochemistry instrumentation, Ruthenium Compounds chemistry, Titanium chemistry
- 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.
- Published
- 2005
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