| 摘要 |
PURPOSE:To enhance mechanical strength, durability, and storage stability by forming an electric charge generating layer containing a charge generating material made of a specified azo compound and a charge transfer material made of a hydrazone compound on a charge transfer layer. CONSTITUTION:The charge transfer layer containing the charge transfer material is formed on a conductive supporting body, and on this layer is formed the charge generating layer containing the charge generating material composed of plural kinds of azo compounds represented by formula I and the charge transfer material made of at least one of the hydrazone compounds represented by formula II. In formula I, X is a divalent organic group forming a conjugated double bond system between 2 carbons each combined with an azo group; each of T and Z is an organic group, such as represented by formula III; in formula III, A is an atomic group necessary to complete an optionally substituted hydrocarbon ring or heterocyclic ring; and E is an optionally substituted hydrocarbon ring or heterocyclic ring, thus permitting mechanical strength, durability, and storage stability to be enhanced. |
