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Investigation of Temperature and Aging Effects in Nanostructured Dye Solar Cells Studied by Electrochemical Impedance Spectroscopy

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2009Publisher:WileyJournal:International Journal of Photoenergy, volume 2,009 (issn: 1110-662X, eissn: 1687-529X,

Authors: Minna Toivola; Janne Halme; Peter Lund; Lauri Peltokorpi;

doi: 10.1155/2009/786429

Investigation of Temperature and Aging Effects in Nanostructured Dye Solar Cells Studied by Electrochemical Impedance Spectroscopy

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Abstract

Effects of aging and cyclically varying temperature on the electrical parameters of dye solar cells were analyzed with electrochemical impedance spectroscopy. Photoelectrode total resistance increased as a function of time due to increasing electron transport resistance in the TiO2 film. On the other hand, photoelectrode recombination resistance was generally larger, electron lifetimes in the TiO2 were film longer, and charge transfer resistance on the counter electrode was smaller after the temperature treatments than before them. These effects correlated with the slower deterioration rate of the temperature‐treated cells, in comparison to the reference cells.

Related Organizations

Helsinki University of Technology
Finland
Helsinki University of Technology
Finland
University of Technology
Russian Federation

Keywords

TJ807-830, Renewable energy sources

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