Figure 4From: Effect of TiO2 nanoparticle-accumulated bilayer photoelectrode and condenser lens-assisted solar concentrator on light harvesting in dye-sensitized solar cellsElectrochemical impedance spectroscopy analysis of DSSCs with T25/T25, T25/T240, and T240/T240 DL. (a) Nyquist plots and (b) Bode plots of T25/T25-DL-, T25/T240-DL-, and T240/T240-DL-based DSSCs with condenser lens-based solar concentrator.Back to article page