Positively chargeable organic laminated photosensitive body and production thereof

Abstract

Abstract PURPOSE:To facilitate the injection of positive holes between the electric charge generating and transferring layer and the electric charge transferring layer of a photosensitive body and to increase the sensitivity of the photosensitive body by using different positive hole transferring materials in the layers and regulating the difference between the oxidation potentials of the materials to a prescribed value or below. CONSTITUTION:A positive hole transferring material having a lower ratio of org. value/inorg. value and a higher oxidation potential than a positive hole transferring material used in an electric charge transferring layer 2 is used in an electric charge generating and transferring layer 3. The difference between the oxidation potentials of the positive hole transferring materials is <=0.3eV. When a coating soln. for forming the layer 3 is prepd., an org. solvent which dissolves the positive hole transferring material for the layer 3 but does not dissolve the positive hole transferring material for the layer 2 is used. The dissolution of the positive hole transferring material in the layer 2 during the formation of the layer 3 by coating is prevented, the injection of positive holes between the layers 2, 3 is facilitated and the sensitivity of the resulting photosensitive body is increased.

Inventors

• 👤 Keizo Kimoto
• 👤 Masafumi Tanaka
• 👤 Koji Nishikawa

Bibliographic Details