Comparison of charge accumulation and transport in nanostructured dye-sensitized solar cells with electrolyte or CuSCN as hole conductor
| Autor: | F.O. Lenzmann, Anders Hagfeldt, Gerrit Boschloo, Boriss Mahrov |
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| Předmět: |
Photocurrent
Renewable Energy Sustainability and the Environment Chemistry Open-circuit voltage Inorganic chemistry Oxide Electrolyte Redox Surfaces Coatings and Films Electronic Optical and Magnetic Materials Dye-sensitized solar cell chemistry.chemical_compound Nanocrystal Chemical engineering copper thiocyanate hole conductor dye sensitized solar cell charge transport nanostructured dye sensitized solar cell electrolyte Thin film |
| Popis: | The charge transport properties of the dye-sensitized solar cells consisting of Ru(dcbpyH2)2(NCS)2-sensitized nanostructured TiO2 with either redox electrolyte or CuSCN as hole conductor were compared. The electron transport time and the electron charge in the TiO2 varies in a similar way with the incident light intensity for both hole conductors: electron transport becomes faster and electron accumulation increases with increasing light intensity. Electron transport in the CuSCN-based cells is significantly faster than in electrolyte cells under conditions where the accumulated charge is equal. An ultra-thin Al2O3 layer on the nanocryst. TiO2 has a beneficial effect since it decreases recombination and increases the open-circuit potential. |
| Databáze: | OpenAIRE |
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