| 摘要 |
PURPOSE:To obtain a photosensitive body high in sensitivity in the wavelength region of >=750nm and good in S/N ratio by incorporating at least one of 2 kinds of specified compounds. CONSTITUTION:The photosensitive composition contains at least one of the 2 kinds of compounds represented by formula I and II in which each of Z0 and Z0' is O, S, or the like; R3 is a hydrocarbon group; each of X0 and X0' is pyran, benzopyran, or the like; each of Y1, Y2, Y1', and Y2' is H, an aliphatic group, or the like; each of A1 and A2 is optionally substituted aryl or the like; each of R1, R2, R1', and R2' is H or the like; each of L1-L4 is optionally substituted methine; each of n and m is 0 or 1; each of p and q is 0, 1, or 2; each of Q1<-> and Q2<-> is an anion; and r is 1 or 2, thus permitting the obtained photosensitive composition to be sensitized up to the long wavelength region of >=750nm, and enhanced in sensitivity, stability, and an S/N ratio. |
