Extended Data Fig. 5: Control results from uncoated quartz experiments.
From: Gold nugget formation from earthquake-induced piezoelectricity in quartz
Imagery of the quartz crystal control slabs from our uncoated experiments. Samples were submerged in their respective solutions, but not deformed. (a) BSE image of bare quartz gold chloride (AuCl4) experiment. (b) and (c) are BSE and SE images, respectively, of the square area outlined in (a). (d) BSE image of bare quartz gold nanoparticle (AuNP) experiment. (e) and (f) are BSE and SE images, respectively, of the square area outlined in (d). BSE: Backscattered electron. SE: Secondary electron.
