Preparation of a Counter Electrode with P-Type NiO and Its Applications in Dye-Sensitized Solar Cell

Figure 5

The 3-D micro-structure of counter electrodes. (a) Pt(E), (b) Pt(S), (c) Pt(E)/NiO, and (d) Pt(S)/NiO.

(a)

(b)

(c)

(d)