| 摘要 |
PURPOSE:To improve the dark attenuation and light attenuation characteristics of a photosensitive body and to increase the mechanical strength thereof by separately forming a photosensitive layer consisting of a-Si:H and electric charge holding layer or surface layer consisting of a-SiC:H on the surface side and providing inclined layers consisting of a compd. having a prescribed compsn. between the two layers. CONSTITUTION:This electrohotographic sensitive body is constituted of the electric charge holding layers 6, 7 consisting of a-SiC:H, the photosensitive layer 8 consisting of a-Si:H, the inclined layers 9, 10 consisting of a-SixC1-x:H (the compd. of a-Si:H and a-SiC:H) and an electrode metal 11. Since the a-SiC:H has the optical band gap larger by about 1 eV than the optical band gap of the a-Si:H, light of about 6000Angstrom having high sensitivity to the a-Si:H transmits th layers 6 and 9 and is absorbed by the photosensitive layer 8. On the other hand, the electric charge charged on the surface of the photosensitive body is erased as the electron hole pairs generated by the light adsorbed in the photosensitive layer 8 are injected through the inclined layers 9, 10 into the layers 6, 7. |
