Impedance spectroscopy study of solid-state dye-sensitized solar cells with varying Spiro-OMeTAD concentration
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Data
2010-12-01
Autores
Góes, Márcio S. [UNESP]
Fabregat-Santiago, Francisco
Bueno, Paulo Roberto [UNESP]
Bisquert, Juan
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Resumo
This work reports on the changes of performance of solid-state cells dye-sensitized solar cells with the variation of concentration of spiro-OMeTAD between 5% and 25% in the fabrication of the cell. Variations of charge recombination and capacitance correlate with the improvement of current-potential characteristics at increasing spiro-OMeTAD content, which is explained by reduction of transport resistance for hole transport, the increase of charge separation in the dye molecules, and importantly, with the increase of the β-factor in the recombination resistance, that causes a reduction of the diode ideality factor. © 2010 Materials Research Society.
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Palavras-chave
Charge recombinations, Charge separations, Current-potential, Dye molecule, Dye-Sensitized solar cell, Hole transports, Ideality factors, Impedance spectroscopy, Solid-state cells, Solid-state dye-sensitized solar cells, Transport resistance, Photoelectrochemical cells, Solar cells
Como citar
Materials Research Society Symposium Proceedings, v. 1211, p. 50-55.