Research Article

Particle Size Effects of TiO2 Layers on the Solar Efficiency of Dye-Sensitized Solar Cells

Figure 8

The EIS curves of the DSSCs prepared by double-layer structures with different TiO2 particle sizes in the (a) bottom and (b) top layers, respectively, in the form of the Nyquist plots.
563897.fig.008a
(a)
563897.fig.008b
(b)