Growth by Molecular Beam Epitaxy of Vanadyl Phthalocyanine on Alkali-Substituted Alkali-Halide Mixed Crystal Substrates

The epitaxial growth of vanadyl phthalocyanine (VOPc) on KBr–NaBr mixed-crystal substrates was examined. The experimental results indicate that the orientation and morphology of the film are primarily affected by the lattice constants of the substrates, but not by differences in the substituted components, e.g. , alkali or halogen. The VOPc island crystal domains grew even on large-mismfit NaBr substrates. Their characteristic shape and the possible growth process are also discussed.