Analysis of the origin of open circuit voltage in dye solar cells

Sonia R. Raga, Eva M. Barea, Francisco Fabregat-Santiago

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Changes in the composition of the electrolyte are known to affect the parameters that determine the performance of dye solar cells. This paper describes a robust method for the analysis of the photovoltage in dye solar cells. The method focuses on the study of recombination resistance and chemical capacitance of TiO 2 obtained from impedance spectroscopy. Four dye solar cells with electrolytes producing known effects on photovoltage behavior have been studied. Effects of conduction band shifts and changes in recombination rate in the photovoltage have been evaluated quantitatively.

Original languageEnglish
Pages (from-to)1629-1634
Number of pages6
JournalJournal of Physical Chemistry Letters
Issue number12
Publication statusPublished - 21 Jun 2012
Externally publishedYes

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