| 摘要 |
PURPOSE:To provide an electrophotographic sensitive body having superior characteristics and to prevent generation of flow and undistinctness in picture by incorporating >=3ppm B-contg. amorphous Si in a second photoconductive layer, regulating a content of N atoms in a surface layer to a specified value and regulating also a relation between the Boron-content and Nitrogen-content therein to a specified relation. CONSTITUTION:The title electrophotographic sensitive body comprises an electric charge injection-inhibiting layer 2, a first photoconductive layer 3 consisting primarily of amorphous Si, a second photoconductive layer 4 consisting of -contg. amorphous Si and a surface layer 5 consisting of nitrided amorphous Si, built in layers successively on a base body 1. The amorphous Si in the second photoconductive layer 4 contains >=3ppm B, the content of N atoms in the surface layer is >=0.5 atomic ratio to the Si atoms in the surface layer and the relation of the content of boron (Bppm) in the second photoconductive layer to the content of N atoms (N) is regulated by the relation expressed by the formula I. By this constitution, the title electrophotographic sensitive body has superior electrophotographic characteristics in dark attenuation, sensitivity, and chargeability. Also, generation of flow in copy picture and undistinctness of picture are inhibited. |
