| 摘要 |
PURPOSE:To improve initial characteristics and to permit long-term stable use of a photosensitive body without deteriorating the characteristics by providing a diamond-like carbon film which is made P-type or N-type in conduction type by incorporation of an element of either the group III and V of periodic table therein on the surface of the photosensitive body. CONSTITUTION:The diamond-like carbon film 5 to be formed on the surface of the amorphous silicon photosensitive body is made P-type or N-type in conduction type by addition of the element of either the group III and V thereto and has, therefore, a current rectifying characteristic unlike the conventional diamond-like carbon film. The diamond-like carbon film is consequently made N-type in the case of a photosensitive body for positive polarity charge and is made P-type in the case of a photosensitive body for negative polarity charge. Since the utilization of the current rectifying characteristic thereof is thereby permitted, the initial characteristics of the photosensitive body are improved; in addition, the deterioration in the characteristics such as photosensitivity, receptive potential, dark attenuation and residual potential is obviated even after long-term use. |
