The primary, long-term goal of our research is to develop numerical
tools/code capable of both predicting and simulating on-going
experiments examining microstructure evolution of nanostructures in
semiconductor thin films and the self-organization of nanostructures
on semiconductor surfaces during deposition. Of particular interest is
the development of numerical procedures that provide insight into the
physical mechanisms that control the formation of isolated single, and
interacting arrays of quantum dots and quantum fortress structures in
three dimensions. These features form from morphological instabilities
that develop during vapor deposition of a lattice mismatched species
onto a fixed substrate. The organized structures can be influenced by
surface and bulk diffusion, by the elastic interaction of the film and
substrate, by compositional strains, and by surface chemistry.
More details, results and pictures coming soon...