Influence of the palladium amount on the ordering, final size, and composition of Pd-Au nanoparticle arrays

The design of metallic nanoparticles (NPs) with well-controlled features is very important for fields such as catalysis, molecular electronics and magnetism. Several routes towards tailored NP systems have been explored. Among them, nanostructured substrates exhibiting a regular twodimensional
network of defects appeared to be good candidates for growing long-range ordered NP arrays with a narrow size distribution and a similar local environment around each NP [1, 2].