LAMINATED PHOTOSENSITIVE BODY AND ITS PRODUCTION

摘要

PURPOSE:To improve initial electrostatic charge quantity and to stabilize an electrophotographic characteristic in the stage of reiterative and continuous use by depositing by evaporation non-metallic phthalocyanine to a specific thickness on a conductive base body of a relatively low temp. and growing the alpha type crystal of the film formed by the vapor deposition to a specific grain size. CONSTITUTION:A photosensitive body is formed of a conductive base body 1, an electric charge generating layer 2 on the base body and an electric charge transfer layer 3 on the layer 2. The layer 2 is formed of a non-metallic phthalocyanine film deposited by evaporation. The phthalocyanine film deposited by evaporation generates granulation by the development and growth of the crystal in the form of the alpha type crystal when brought into contact with an arom. org. solvent and is formed of the alpha type fine crystal which has the crystal particle size ranging 100-2,000Angstrom thickness and dark conductivity of <=10<-10> (OMEGA-cm)<-1>. The electrostatic charging potential is thus maintained at 417V in the initial time and at 412V after fine consecutive times. A remarkable effect in improving the electrostatic charge quantity and stabilizing the electrophotographic characteristic in the stage of continuous use is thus obtd.