Electrochemical Fabrication of Shape-Controlled Copper Hierarchical Structures Assisted by Surfactants
Figure 5
SEM images of the products by adding PVP in the electrolyte at the different deposition times of 5 min (a), 10 min (b), and 20 min (c). The insets in Figures 5(a)–5(c) show the magnification SEM images of the corresponding photos.
