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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3192

Title: Electron migration and stability of dye solar cells
Authors: Le Roux, L
Hietkamp, S
Keywords: Dye solar cell
Nyquist plot
Bode plot
I–V curve
Impedance spectroscopy
Viscosity
Permittivity
Issue Date: Jul-2008
Citation: Le Roux, L and Hietkamp, S. 2008. Electron migration and stability of dye solar cells. Conference proceedings, UWC, pp 17
Abstract: Dye-sensitised photoelectrochemical solar cells with four different electrolyte combinations were assembled and characterised using current voltage measurements. The effects that the solvents (acetonitrile - ACN and propionitrile - PN) have on the efficiency of the cells were investigated. Two physical properties of the solvents (viscosity and permittivity) were used in this comparison. Electrochemical impedance spectroscopy (Nyquist and Bode plots) was used for analysis of the charge transfer processes. The different electrolyte combinations had a significant difference on the short circuit currents (ISC) 42 and 48 mA for B and A respectively while the solvents had almost no effect. The results show that the solvents have the greatest effect on the efficiencies of the cells
URI: http://hdl.handle.net/10204/3192
Appears in Collections:General science, engineering & technology

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