Photoelectrochemical Stability and Alteration Products of n-Type Single-Crystal ZnO Photoanodes
Figure 11
Spectral photocurrent quantum yield of the various single-crystal ZnO semiconducting photoanodes for (a) the thermochemically doped (1)–(6) samples and (b) the samples (7)–(9) doped in the melt during growth. The quantum yield correlates well with carrier concentration (see Table 1), where lower carrier concentrations result in a larger quantum yield.