Photoelectrochemical Stability and Alteration Products of n-Type Single-Crystal ZnO Photoanodes
Figure 9
Metallic Zn crystal layer formed at the surface of a ZnO single-crystal photoanode after 17 hours of operation in a photoelectrochemical cell. (a) An overall low magnification view showing the porous nature of the altered surface layer. (b) A detailed view showing the Zn metal dendritic growth morphology.