INFLUENCE OF LATTICE MISFIT ON SURFACE-MORPHOLOGY OF VANADYL-PHTHALOCYANINE MOLECULAR-BEAM EPITAXY FILMS GROWN ON KCL KBR MIXED-CRYSTAL SUBSTRATES/

The influence of the lattice misfit on the surface morphology and grai n size of vanadyl-phthalocyanine (VOPc) epitaxial films has been inves tigated using KCl/KBr mixed-crystal substrates. The grain size in thic k films becomes smaller as the misfit becomes larger, whereas the init ial island size is large when the misfit is large. This relation in th e thick films is consistent with the equilibrium theory developed for the covalent heteroepitaxial system showing isolated islands growth, a s in the present case.