Improved photoreceptor decay characteristics of vanadyl-phthalocyanine films annealed under magnetic field

Magnetic field was applied during the annealing of vanadyl-phthalocyanine films prepared by vacuum vapor deposition. It was observed that the Q-band absorption peak position in the UV–vis absorption spectra of the films shifted to longer wavelength, and the X-ray diffraction intensity of the films was enhanced for the film annealed under magnetic field. Remarkable improvements in the photoreceptor decay characteristics of the films were also found for the films annealed under magnetic field. It is suggested that molecular orientation during annealing under magnetic field is responsible for the above phenomena.