Patent ID: 7255969
Filing Date: 2007-08-14
Classification: G03G

Abstract:
1. An electrophotographic photosensitive member comprising: a conductive substrate; a photoconductive layer formed of a non-single-crystal silicon film using at least silicon atoms as a base material; and a surface region layer formed of a non-single-crystal silicon nitride film which uses silicon atoms and nitrogen atoms as base materials and at least part of which contains a Group 13 element in the periodic table and carbon atoms, the surface region layer being superimposed on the photoconductive layer, wherein a content of the Group 13 element in the periodic table with respect to a total amount of constituent atoms has distribution having at least two local maximum values in a thickness direction of the film in the surface region layer, and wherein a content of oxygen atoms and/or fluorine atoms in the surface region layer with respect to the total amount of the constituent atoms has at least one local maximum value in the thickness direction of the film.