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

Figure 7

Mott-Schottky plot of the measured capacitance of the SnO₂ (a), CNW (b), and the SnO₂ decorated CNW thin films with SnO₂ concentration of 2.5 w% (c) and 5.0 w% (d).

(a)

(b)

(c)

(d)