Alumina Template-Dependant Growth of Cobalt Nanowire Arrays
Figure 5
Top view FESEM image for fragments of Co nw arrays fabricated in the oxalic acid alumina pores by AC (50 Hz) deposition from the optimized solution at 0.5 A ( from 18 to 32 V) and room temperature for (a) 10 and (b) 20 minutes. Before depositions, the barrier layer of the as-grown templates was thinned by decreasing anodizing voltage down to 20 V and etching in 0.5 M at 30 °C for 32 minutes. Following depositions the template was etched in the same 0.5 M solution.
