| 摘要 |
PURPOSE:To improve carrier generation efficiency and to enhance sensitivity by adding, as the material of an electrostatic charge generating layer, a specified amt. of the same material as a conductive substrate to a functionally separated laminate type photosensitive layer. CONSTITUTION:An ultrafine powder of aluminum same as the material of a conductive substrate of an aluminum plate is added to a charge generating layer (CGL) of a laminated photosensitive layer of said CGL and a charge transfer layer CTL formed on said conductive substrate in an amt. of 5-40wt% of a charge generating material (CGM). Said aluminum powder same as the material of the conductive substrate is dispersed concentratedly in the width of at largest 1/2 the total width of CGL from the interface of the substrate till the middle of CGL. It is preferred to form CGL by vapor depositing CGM together with the ultrafine aluminum powder. The addition of aluminum same as the substrate material into CGL enlarges the substantial area of the interface between CGL and the substrate, and the site contributing to charge generation, thus permitting both of charge generating efficiency and sensitivity of the photosensitive body to be elevated. |
