Figure 6From: Enhancing performance of ZnO dye-sensitized solar cells by incorporation of multiwalled carbon nanotubesEquivalent circuit and Nyquist plots. (a) Equivalent circuit for the simulation of DSSC impedance spectra. (b) Nyquist plots of fabricated DSSCs determined under an AM 1.5 G solar illumination of 100 mW cm-2. MWNT loading was 0.01 wt%, and the film thickness was 8 μm.Back to article page