Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
Figure 9
Enlarged plots of Ppy layers showing values corresponding to the first cycles shown in Figure 3. (•) experimental points, (a) Ea = 1.2 V, (b) Ea = 1.4 V. The figures correspond to number of cycles. Open points corresponds to different growing models: (⊙, ○) increasing d holding n and k fixed; (□, ◊, ∆, ∇) decreasing both n and k for different d fixed values, namely d = 130, 100, 70 and 40 nm, respectively.