Research Article

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

Figure 5

The photocurrent-voltage curves of DSSCs with double-layer structures of different TiO2 particle sizes in the (a) bottom and (b) top layers, respectively.
563897.fig.005a
(a)
563897.fig.005b
(b)