CdS-Sensitized ZnO Nanorod Photoelectrodes: Photoelectrochemistry and Photoinduced Absorption Spectroscopy

Figure 6

Incident photon-to-current conversion efficiencies (IPCE) of ZnO-nr photoelectrode before modification with CdS (dark blue square) and after modification with CdS (violet square); ZnO-np/CdS (cross) and ZnO-nr/ZnO-np/CdS (yellow triangle). Electrolyte was Na₂S 0.1 M, Na₂SO₄ 0.01 M.