Computational study on tuning the 2D self assembly of metallic nanoclusters

We discuss the size selection of metallic 2D clusters in cases where the growth proceeds on flat or wedged surfaces. The growth of nanoclusters is modelled using reaction kinetic model rate equations, where the kinetics are described by size dependent attachment and detachment rates, and the energetics are described through the free energy difference of the clusters. The model describes how the optimum stationary size and small size dispersion are reached, and what are the properties of the stationary size distribution. In addition to the geometrical factors, it is shown that the deposition flux can also be used to tune the size distribution towards the desired property.