Copper Sulfide Catalyzed Porous Fluorine-Doped Tin Oxide Counter Electrode for Quantum Dot-Sensitized Solar Cells with High Fill Factor

Figure 3

Cross-sectional SEM image of a porous-FTO electrode (a), TEM image of the porous-FTO (ii)/CuS (i) composite removed from the counter electrode surface (b), and EDX point analysis at points (i) and (ii) in the TEM image (c).

(a)

(b)

(c)