Abstract
Tin oxide (SnO2) is a promising candidate for dye-sensitized solar cell (DSSC) application due to its wide band gap, high stability and high electron conductivity. Despite of its remarkable benefits, a detailed discussion on electron transfer mechanism inside SnO2-based DSSC is still needed. Electrochemical impedance spectroscopy (EIS) analysis have been widely employed to understand the electron transport processes and performance of DSSC by correlating the impedance spectrum with its equivalent circuit model. The scope of this review provides an insight overview on the photovoltaic potential of SnO2 as photoanode in DSSC application followed by a detailed review on the application of EIS analysis in morphologically modified SnO2-based DSSC and hybrid structure of SnO2-based DSSC.
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