Photoelectrochemical Properties of Porous Si/TiO₂ Nanowire Heterojunction Structure

Figure 4

I-V curves of porous Si/TiO₂ nanowire heterostructure, Si/TiO₂ nanowire, porous Si, and Si wafer under the simulated (a) solar light and (b) visible light irradiation.

(a)

(b)