Patent ID: 8722288

Claim:
An organic photosensitive layer formed on an electrically conductive substrate, wherein said organic photosensitive layer contains a diphenylnaphthylamine derivative as a charge-transporting agent, wherein the diphenylnaphthylamine derivative is represented by formula (1′″), wherein, r 63 to r 67 may be the same or different, and are integers of 0 to 5, R 63 to R 67 may be the same or different, and are groups selected from the group consisting of alkyl group having 1 to 6 carbon atoms, alkoxy group having 1 to 6 carbon atoms, halogen atom, aromatic hydrocarbon group, condensed polycyclic aromatic group, aromatic heterocyclic group, and disubstituted amino group having, as substituents, alkyl groups having 1 to 6 carbon atoms, alkenyl groups having 2 to 6 carbon atoms, aralkyl groups, aromatic hydrocarbon groups or aromatic heterocyclic groups, and when R 63 , R 64 , R 65 , R 66 and R 67 are present in plural numbers, the plurality of R 63 , R 64 , R 65 , R 66 and R 67 may be each the same or different, and may be bonded together to form a ring structure.