Polymorphism and phase control in titanyl phthalocyanine thin films grown by supersonic molecular beam deposition

Ultraviolet absorption and micro-Raman analyses are used for studying the polymorphism in the growth of titanyl phthalocyanine films on dielectric substrates. Hyperthermal beams have given unprecedented control on the growth, which has produced crystalline films with a controlled structure and different phases even at room temperature and on amorphous substrates, depending on the deposition rate.