| 摘要 |
PURPOSE:To improve sensitivity of a photosensitive body and its stability against UV rays by incorporating a specified styryl 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 a styryl compd. represented by the formula in which R<1>, R<2> are each alkyl, phenyl, or the like; R<3> is phenyl, naphthyl, or the like; and R<4>-R<7> are each H, halogen, alkyl, or the like. Here, the phase means a so-called layer and also the phase in which each constituent material is in contact with each other. Since said org. polymer semiconductor is used together with said styryl 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 fog-free good image can be obtained. |
