Nanostructured Multilayer Composite Films of Manganese Dioxide/Nickel/Copper Sulfide Deposited on Polyethylene Terephthalate Supporting Substrate

Figure 2

SEM micrographs of nickel films electrodeposited on CuS/PET substrates under different applied potentials: (a) 2.0 V, (b) 2.5 V, and (c) 3.0 V.

(a)

(b)

(c)