151748.fig.004a
(a)
151748.fig.004b
(b)
151748.fig.004c
(c)
151748.fig.004d
(d)
Figure 4: SEM images of PTO and NNO NWs and nanocomposites: (a) PTO NWs, (b) NNO NWs, (c) PTO/PVDF nanocomposite, and (d) NNO/PVDF nanocomposite.