SnO₂ Nanoparticles Decorated 2D Wavy Hierarchical Carbon Nanowalls with Enhanced Photoelectrochemical Performance

Figure 5

FESEM image of SnO₂ nanoparticle on bare Si substrate (a) and SnO₂ nanoparticles decorated CNW at 2.5 and 5.0 w% for (b) and (c), respectively.

(a)

(b)

(c)