Comparison of charge accumulation and transport in nanostructured dye-sensitized solar cells with electrolyte or CuSCN as hole conductor

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.


Published in:
Solar Energy Materials & Solar Cells, 88, 351-362
Year:
2005
ISSN:
0927-0248
Keywords:
Laboratories:




 Record created 2015-07-06, last modified 2018-09-13


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