Diameter- and Shape-Controlled ZnS/Si Nanocables and Si Nanotubes for SERS and Photocatalytic Applications

Figure 3

SEM images of ZnS/Si cables with different diameters of (a) 200 nm; (b) 500 nm; (c) 700 nm; (d) 900 nm.

(a)

(b)

(c)

(d)