Correlation between photovoltaic performance and impedance spectroscopy of dye-sensitized solar cells based on ionic liquids

Abstract

In this work, we study the characteristics of dye-sensitized solar cells using an ionic liquid as the electrolyte and compare them with the response of a solvent-containing electrolyte cell. Impedance spectroscopy is used to derive the key circuit elements determining the photovoltaic performance of the cell. On the basis of this data, photocurrent voltage curves are calculated and compared with experimental results. © 2007 American Chemical Society.