Fig. 3: The electrodeposition of Ag on the cubic Au nanocrystals surface.
From: Observing atomic layer electrodeposition on single nanocrystals surface by dark field spectroscopy
SEM images of a large and b (top) small-scale reveal the highly ordered geometry of Au nanocubes on the electrode along with b (bottom) structural schematic of the Au nanocube. c The CV of Ag UPD on the Au nanocubes-coated electrode in the electrolyte of 1 mM Ag2SO4 and 0.05 M H2SO4. d The scattering spectra of single Au nanocube under different potentials. The inset shows the zoom-in spectra to clearly present the spectral variations. e The reconstructed optical “CV” of single Au nanocube, showing two different deposition processes. f The time-dependent peak intensity change of the scattering spectra of single Au nanocube under different potential controls (from 0.500 to 0.400 V with a step of 50 mV, from 0.400 to 0.380 V with a step of 10 mV and from 0.380 to 0.360 V with a step of 15 mV). g The CVs of Ag deposition on a Au (100) electrode before (black curve) and after (dark cyan curve) the adsorption of the surfactants, CTAB. h The peak potential statistics of UPD bands obtained from the optical “CV”s of 20 individual Au nanocubes. The scale bars are 200 nm in a and 50 nm in b.
