Exact analytical analysis of current density–voltage curves of dye-sensitized solar cells

In this work, a simple and a straight-forward approach to derive the parameters of dye-sensitized solar cells (DSSCs) in terms of single diode model is discussed. The parameters are extracted exclusively from single current density–voltage (j–V) curve with some common assumptions. The technique does not require smoothing of the j–V curve by means of polynomial fitting as well as iterative calculation of the diode model equation. The data obtained from this method are compared with that obtained from least square fitting and the combined analyses of electrochemical impedance spectroscopy (EIS) and j–V data for two different DSSCs. The method is suitable for routine analysis of DSSCs.