PURPOSE: To enhance durability and humidity resistance and to eliminate residual potential by adding Ge into the whole region of the first layer in a uniform distribution, and adding a conductivity governing substance into the whole region of the second layer in a uniform distribution.

CONSTITUTION: The photoreceptor 100 is prepared by laminating on a substrate 101 the first layer 102 made of an amorphous photoconductive silicon contg. silicon matrix and Ge, and the second layer 103 made of an amorphous silicon contg. silicon matrix and C. The presence of Ge in the first layer enhances the photoreceptor sensitivity to lights of all the visible wavelength region, and the uniform distribution of C and elements of group I and V in the second layer enhances humidity resistance, retentivity of characteristics at the time of successive repeated uses, high voltage resistance,durability, etc., and permitting an image high in resolution and quality to be repeatedly obtained.