| 摘要 |
PURPOSE:To improve flexibility and adhesion, to enhance sensitivity, and to prevent rise of residual potential by forming a photosensitive layer contg. a specified hydrazone compd. on a conductive substrate. CONSTITUTION:A photosensitive layer formed on a conductive substrate contains a hydrazone compd. represented by formula I in which X is a heterocyclic group; R1-R3 are each H, alkyl, aralkyl, or aryl, and both of R1 and R2 are not simultaneously H. Such a hydrazone compd. functions as an electrostatic charge transfer substance, and a charge transfer layer 3 is formed on a charge generating layer 2 on the substrate 1 by using this charge transfer substance and, for example, a polymer as a binder 4 to form a laminate type. This hydrazone compd. may be dispersed into the binder 4 together with a charge generating substance 2 to form a sigle layer type. In both cases, the hydrazone compd. acts effectively, it has superior flexibility and adhesion, and a good photosensitive body high in sensitivity and prevented from rise of residual potential can be obtained. |
