Research Article

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.
563427.fig.009a
(a)
563427.fig.009b
(b)