Influence of the Hydrothermal Method Growth Parameters on the Zinc Oxide Nanowires Deposited on Several Substrates

Figure 8

Scanning electron microscopy images of the ZnO nanowires grown on Si substrate at 700 W and with a heating time of (a) 5 min, (b) 20 min, and (c) 35 min. Scale bar of 200 nm.

(a)

(b)

(c)