Figure 2
From: Gold nanospikes based microsensor as a highly accurate mercury emission monitoring system
SEM micrographs of (a) 100 nm thick Au film (Au-control) e-beam evaporated on to a QCM followed by electrodeposition of Au on the surface in the presence of Pb2+ ions for a period of (b) 100 sec, (c) 200 sec, (d) 300 sec, (e) 400 sec, (f) 500 sec, (g) 600 sec, (h) 700 sec and (i) 800 sec. The scale bars correspond to 500 nm.
