Effect of applied electric field on growth morphology of copper phthalocyanine thin films

Abstract

Abstract The effect of electric field on the initial stages of copper phthalocyanine adsorption on the SiO2 substrate was studied experimentally. The external electric field was applied during thermo-vacuum evaporation of CuPc. Using atomic-force microscopy and scanning electron microscopy, it was found that in the presence of an electric field, the film morphology changes. Instead of randomly oriented elongated crystallites, new form bend-shaped ones are formed on the substrate surface. The paper provides an explanation of the experimentally observed effect of the electric field on the structure of the growing film.