| 摘要 |
PURPOSE:To enable successive copying and to lengthen service life in an electrophotographic receptor using a multilayer photosensitive structue, by forming a carrier transfer layer containing an aromatic amino compound, a styryl compound, and an organic polymer semiconductor. CONSTITUTION:A carrier transfer layer is composed of a mixture of (A) 100pts.wt. aromatic amino compound represented by the formulaIin which X is O, S, the formula II, or the like, R1 R4 are H, alkyl, aryl, or the like, and R7-R10 are H, halogen, amino, or the like, (B) 1-100pts.wt. styryl compound represented by the formula III in which R1-R4 are alkyl or aryl, Ar1, Ar3 are phenylene, and Ar2 is a homo- or hetero-cyclic sulfur-containing aromatic group, and (c) 10-800pts.wt. organic polymer semicoonductor haming condensed aromatic rings or heterocyclic rings in its side chains. A photo-sensitive layer 4 consisting of a 0.005-20mum thick carrier generating layer 2 and said 2-100mum thick carrier transfer layer 3 is formed on a conductive substrate 1 to make a photoreceptor. |
