| 摘要 |
PURPOSE:To attain absorption in the region of visible light - near infrared light and to provide high sensitizing capacity to a photoconductive substance by incorporating a specified compd. CONSTITUTION:At least one kind of compd. represented by the formula is incorporated. In the formula, each of Z and Z' is O, S or Se atom, each of Q and Q' is a group of atoms required to form an optionally substd. 5-membered hetero ring, each of R0 and R0' is an aliphat. group, each of X and Y is O, S or Se, atom, A<-> is an anion, r=1 or 2, and when the compd. forms an inner salt, r=1. A photosensitive body having high sensitivity and a sufficient sensitizing effect is obtd. |
