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

Table 3

The parameters of charge transfer resistance in double-layer structures by EIS measurements.

Double layers; (nm)	Rs (Ω)	R1 (Ω)	R2 (Ω)
400/5/FTO	29.18	10.29	13.40
400/100/FTO	20.77	21.34	18.10
400/200/FTO	20.67	20.48	44.33
100/10/FTO	14.62	21.27	18.67
200/10/FTO	16.41	8.81	12.98
400/10/FTO	13.81	17.74	12.28