| 摘要 |
PURPOSE:To obtain a titled image forming material which has high sensitivity and can form an image having sustained conductivity by providing a photosensitive memory layer contg. an aryl methane dye (a memory effect providing agent) and an org. photoconductive material on a conductive substrate. CONSTITUTION:The aryl methane dye expressed by the formula I [at least one of R1-R3 is the formula II, the formula III (R4-R8 are alkyl, aryl, hydrogen), two or below are alkyl, aryl, aralkyl, hydrogen; X<-> is anion] is used as a memory effect providing agent. A photosensitive memory layer 2 of about 1-20mu thickness contg. an org. photoconductive material (e.g.; polyvinyl carbazole) and the above-mentioned memory effect providing agent is formed on a conductive substrate 1 which permits hole injection and has 10<2>-10<6>OMEGA/square surface resistivity (preferably a substrate 1a of glass, etc. provided thereon with a composite thin film of In2O3-SnO2 having prescribed resistivity), by which the image forming material is obtd. |
