Electrochemical methods for the characterization and interfacial study of dye-sensitized solar cell

Dye-sensitized solar cell (DSSC) is one of the most rapidly developed solar cells in the past 20 years. Many characterization methods have been employed for further understanding the operational details of the photoelectric conversion in DSSC as well as the evaluation of cell performance. Electrochemical methods have become powerful tools for studying the charge transfer and interfacial process. In this review, we introduce and explain the various electrochemical methods used to characterize and analyze DSSC, including current-voltage (I-V) scan measurement, cyclic voltammetry, electrochemical impedance spectroscopy, intensity-modulated photocurrent spectroscopy, and intensity-modulated photovoltage spectroscopy. In addition, some applications were provided as samples to elucidate electron transfer kinetics, energy levels and electrocatalytic activity of the materials used in DSSC.