ELECTROPHOTOGRAPHIC SENSITIVE BODY

摘要

PURPOSE:To obtain an electrophotographic sensitive body which has a high traveling property of a carrier and has high resistance and excellent electric charge characteristic by using the superlattice structure constituted by laminating thin layers having optical band gaps different from each other on a photoconductive layer. CONSTITUTION:The photoconductive layer 3 is constituted of an electric charge generating layer 6 and an electric charge holding layer 5. The charge generating layer 6 is constituted by alternately laminating amorphous silicon films and fine crystalline silicon films. The charge holding layer 5 is constituted by alternately laminating thin amorphous silicon films contg. at least one kind of element selected from carbon, oxygen and nitrogen and thin fine crystalline silicon films. The concns. of the elements in the thin amorphous silicon films are changed with each of the thin films in the layer thickness direction. These thin films vary in the optical band gaps and the respective thicknesses thereof are in a 30-200Angstrom range. The excellent traveling property of the carrier and high photoconductive characteristics are thereby obtd. and a sharper image is obtd.