Photocatalytic and Photoelectrochemical Water Splitting on TiO₂ via Photosensitization

Figure 11

(a) Relative energy levels of TiO₂, CdS, and CdSe in bulk phase (a) and (b) ideal stepwise band edge structure for efficient transport of the excited electrons and holes in a CdS/CdSe cosensitized electrode. Reprinted with permission from [9]. Copyright 2010, American Chemical Society.

(a)

(b)