Figure 2.

SEM photographs of ZnO+x·Ag with varying silver content: (A) and (B) 0%Ag; (C) and (D) 0.1%Ag; (E) and (F) 1%Ag; (G) and (H) 10%Ag.

Abbreviations: SEM, scanning electron microscope; ZnO, zinc oxide; Ag, silver.