| 摘要 |
PURPOSE:To obtain an electrophotographic sensitive body high in sensitivity especially to long wavelength light and superior in physical property by forming a charge generating layer contg. a specified gallium phthalocyanine compd. and further, a charge transfer layer on this layer. CONSTITUTION:A charge generating agent used here is a gallium phthalocyanine compd. represented by the formula shown here in which Me is Ga, and X is Br, and Br are substd. for a part of H of the benzene ring, such as a formula of C32H14.8N7.8Br2Ga1.2. A charge generating layer 62 is formed by vacuum vapor depositing this gallum phthalocyanine to a conductive substrate 61, and a charge transfer layer 63 is formed on the layer 62 by coating it with a soln. of a charge transfer layer of a polyvinyl carbazole or the like. The layer 62 may be very thin, such as 200nm thickness, so a time required for forming it is short and it is easy to prepare. The obtained photosensitive body is especially high in sensitivity to >=800nm long wavelength light, and suitable for high speed copying. |
