Figure 3From: Structural modulation of silicon nanowires by combining a high gas flow rate with metal catalystsRough SiNWs using Mn as catalyst. (a) A SEM image of rough-surfaced SiNWS grown on Si (100) substrate. (b) Low-magnification SEM image of rough-surfaced SiNW. (c) TEM image of rough SiNW with a typical diameter of 300 nm at the bottom to 60 nm at the tip. (d) HR-TEM images of rough-surfaced SiNW from top to bottom.Back to article page