Synthesis and Optical Properties of Au-Ag Alloy Nanoclusters with Controlled Composition

Figure 4

Typical TEM micrographs and corresponding size distribution histograms for the Au/Ag bimetallic nanoparticles (prepared using second set of metal ion solutions) with different molar ratios of Au/Ag: (a) 1/0, (b) 9/1, (c) 3/1, (d) 1/1, (e) 1/3, (f) 1/9, and (g) 0/1. Average particle size 𝜙 and standard deviation σ are calculated from the Gaussian fittings of the histograms.