830157.fig.004a
(a)
830157.fig.004b
(b)
830157.fig.004c
(c)
830157.fig.004d
(d)
Figure 4: TEM images of ZnS/Si nanocables and Si nanotubes of different shapes: (a) circular cable with ZnS nanowire as template, (b) circular tube, (c) cable of ribbon shape with saw-like ZnS nanoribbon as template, and (d) tube of ribbon shape.