870254.fig.002a
(a)
870254.fig.002b
(b)
870254.fig.002c
(c)
870254.fig.002d
(d)
Figure 2: Morphology and structural characterizations of ZnO NWs. (a) SEM image. (b) TEM image. Inset: SAED pattern. (c) XRD curve. (d) PL spectra.