What is it about?
The effect of repeated temperature variations on the performance of both fresh and aged dye-sensitized solar cells with liquid and semi- solid electrolytes has been studied. The cell performance was characterized with IV-curves obtained at different cell operating temperatures and electrochemical impedance spectroscopy measurements before and after the temperature treatments. Consecutive temperature rampings of the aged cells did regenerate the cell function, so that the total efficiency drop over the observation period was on average 18%/unit less for the temperature-treated cells than for reference cells aged at constant temperature.
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Perspectives
Heat cycling regenerates dye solar cells.
Professor Peter D. Lund
Aalto University
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This page is a summary of: Regenerative effects by temperature variations in dye-sensitized solar cells, Solar Energy Materials and Solar Cells, November 2007, Elsevier,
DOI: 10.1016/j.solmat.2007.05.030.
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