  We discuss effects of the different chemical bondings on the island
morphology and on the island density scaling in two-component submonolayer
growth. Different regimes depending on the strength of the mutual interactions
and on the relative mobility of species are described and studied by kinetic
Monte Carlo simulations using a two-component solid-on-solid growth model.
Results for the temperature and flux dependence of the island density as well
as examples of the surface morphologies are presented.
