| 摘要 |
PURPOSE:To remarkably enhance sensitivity to long wavelength light not below a specified wavelength by forming a charge generating layer contg. a specified aluminum phthalocyanine compd. on a conductive substrate and further, a charge transfer layer on this layer. CONSTITUTION:A compd. to be used as a charge generating substance is an aluminum phthalocyanine compd. represented by the formula shown here in which Me is Al and X is Br, and a part of H of the benzene ring is replaced by Br, such as compd. of C32H15N3Br2Al1. This charge generating substance is vapor deposited to an Al substrate 61 in vacuum to form a thin charge generating layer 62, and further, a charge transfer layer 63 is formed on the layer 62 by a method, such as coating it with a soln. of polyvinyl carbazole or a soln. of a pyrazoline deriv. and a binder resin. As a result, the obtained electrophotographic sensitive body is high in sensitivity to semiconductor laser beams, etc. having >=800nm wavelengths, capable of high-speed copying and of a function separation type. |
