| 摘要 |
PURPOSE:To improve sensitivity of a photosensitive body and its stability against UV rays incorporating a specified hydrazone compd. and an org. polymer semiconductor having condensed aromatic rings or hetero rings on the side chains in a carrier transfer phase. CONSTITUTION:A photosensitive layer 4 is composed of a carrier generating phase 2, and a carrier transfer phase (CTL)3 contg. an org. polymer semiconductor having condensed aromatic or hetero rings on the side chains, and at least one of hydrazone compds. represented by formulae I and II in which R<1> is aryl or heterocyclic; R<2> is H, alkyl, aryl or the like; X is H, halogen, alkyl, or the like; and p is 0 or 1. The phase herein means a so-called layer and also the phase in which each constituent material contacts with each other. Since said org. polymer semiconductor is used together with said hydrazone compd. as a carrier transfer material, light sensitization is effectively executed, a discharge curve has a sharply cut toe, especially, sensitivity in a low electric field is enhanced, and a good image free from fog can be obtained. |
