Morphological variations of Ag nanosheets. Top-view SEM images of Ag nanosheets grown in the electrolyte composed of 20 μM AgNO3 and 1.32 mM NH4OH for 120 min. Comparing the deposition condition (VR = 15 V, VO = 0.2 V, 100 Hz, and 3%) for the sample shown in Figure 1, the reduction potential (VR) was varied as (a) −10 and (b) −20 V, and the oxidation potential (VO) as (c) 0.05 and (d) 0.4 V, respectively. (The insets are magnified top-view SEM images.).
Park et al. Nanoscale Research Letters 2013 8:248 doi:10.1186/1556-276X-8-248