| 摘要 |
PURPOSE:To obtain a photoconductive member stabilized in spectral sensitivity by forming an interlayer between the surface layer of the photoconductive laminated structure and the photoconductive layer and reducing or eliminating reflection from each interface between the interlayer and the surface layer, and the interlayer and the photoconductive layer. CONSTITUTION:The photoconductive laminate structure is prepared by laminating on an aluminum substrate 3 the photoconductive layer 2 made of amorphous Si, amorphous Se, or the like, the interlayer 4 made of amorphous Si, and further, an amorphous silicon carbide transparent layer as a protective layer 1. The reflectances of both interfaces are represented by formulae I, where the refractive indices of the layers 1, 4, 2 are n1, n2, n3, respectively, and n1<n2<n3, and the nearer n1 is to (n1Xn3)<1/2>, the more both values approximate. At that time, equation II applies, where the thickness of the interlayer is (a), the wavelength of incident light is lambda, and m is an integer of >=0, the material and the thickness are selected so as to satisfy said equation, thus permitting the reflection of both interfaces to be weakened, and stable spectral sensitivity to be obtained. |
