Research Article

Electrochemically Deposited Polypyrrole for Dye-Sensitized Solar Cell Counter Electrodes

Figure 3

Top views of PPy films deposited via (a) alternate current for 1 round (AC-1R-PPy), (b) alternate current for 2 rounds (AC-2R-PPy), (c) alternate current for 3 rounds (AC-3R-PPy), (d) direct current for 4 s (DC-4s-PPy), (e) direct current for 8 s (DC-8s-PPy), and (f) optical image of PPy films.
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