CoS/Nanocarbon Composite as a Catalytic Counter Electrode for Improved Performance of Quantum Dot-Sensitized Solar Cells

Figure 4

(a) Nyquist plots of symmetric dummy cells with various CoS-based CEs, Pt CE, and pure NC CE measured at zero bias potential; inset: the equivalent circuit for fitting EIS plots. (b) Magnified plots of (a).

(a)

(b)