| 摘要 |
PURPOSE:To obtain high sensitivity and superior characteristics against repeated uses by incorporating a specified hydrazone compound as an essential component in an electric charge transfer material. CONSTITUTION:The hydrazone compound represented by formula I is incorporated in a photosensitive layer 2 as a charge transfer material 5 in which R1 is H, alkyl, halogen, or the like, and each of R2 and R3 is optionally substituted alkyl, aralkyl, or aryl or the like. This hydrazone compound can be synthesized by the ordinary method, that is by condensing aldehydes and hydrazines in a proper organic solvent, such as alcohols, as necessary, in the presence of a small amount of acid, as a condensing agent, thus permitting the obtained photosensitive body to be high in sensitivity even in the case of positive charging and negative charging, and superior in characteristics against repeated uses. |
