Oxytitanium phthalocyanine crystal

摘要

A photoreceptor for electrophotography comprises a photosensitive layer containing an effective amount of oxytitanium phthalocyanine crystal having strong peaks at 9.6 DEG ., 24.2 DEG and 27.3 DEG and weak and broad peaks at approximately 11.6 DEG , 13.5 DEG , 14.3 DEG and 18.1 DEG in Bragg angle 2&thetas;+/-0.2 DEG by CuK alpha characteristic X-ray diffraction, and an exothermic peak at 266 DEG C in differential scanning calorimetry. The oxytitanium phthalocyanine crystal has a small grain size and a high stability and the photoreceptor has a high photosensitivity to light having a long wavelength. <IMAGE>