Figure 4From: Fabrication of Ni-silicide/Si heterostructured nanowire arrays by glancing angle deposition and solid state reactionTop view FESEM images of Si nanowires. Formed by immersing the 20-nm Ag coated (a) sample A and (b) sample B in HF/H2O2 solution at 50°C for 3 min.Back to article page