Electrophotosensitive material.

摘要

An electrophotosensitive material of the present invention is formed by providing a photosensitive layer containing a bis-azo pigment expressed in formula (1): <CHEM> wherein A<1>, A<2>, R<1> and n are as defined, as a charge generating material, and a diamine compound expressed in formula (2): <CHEM> wherein R<2>, R<3>, R<4>, R<5>, R<6> and R<7> p and q k, l, m and o are as defined, as a charge-trasferring material, on a conductive substrate. As a charge generating material, a perylene pigment, anthanthrone pigment, X-type metal-free phthalocyanine pigment, imidazoleperylene pigment or perylene bis-azo pigment are preferable used together with the bis-azo pigment. Thus, photosensitive material is excellent in sensitivity and durability.