| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic semiconductor device which includes a narrow band gap polymer capable of photoelectric conversion in a visible to near-infrared region and can exhibit a high voltage (V), a photoelectric conversion element and a &pgr;-electron conjugated polymer most suitable for such an organic semiconductor device.SOLUTION: There are provided a &pgr;-electron conjugated polymer having a repeating unit represented by the chemical formula (2), an organic semiconductor device having the &pgr;-electron conjugated polymer, and a photoelectric conversion element: (wherein, R, R, Rand Rare the same or different hydrogen atoms, fluorine atoms, alkyl groups each having 1 to 20 carbon atoms which may have a substituent, aryl groups each having 6 to 20 carbon atoms which may have a substituent or heteroaryl groups each having 4 to 20 carbon atoms which may have a substituent; X is an element selected from carbon, silicon and germanium and is the same or different; Ar is a (hetero)aromatic divalent group which may have a substituent.) |
