452407.fig.001a
(a)
452407.fig.001b
(b)
452407.fig.001c
(c)
452407.fig.001d
(d)
Figure 1: SEM images showing the surface morphologies of ZnO nanorods synthesized on KOH-based seed layer (a) and monoethanolamine-based seed layer (b). The cross-sectional view of the above nanostructured ZnO grown on KOH- and monoethanolamine-based seed layers is demonstrated in (c) and (d), respectively.