| 摘要 |
PURPOSE: An electron donor polymer is provided to have excellent solubility in organic solvent, to be effectively used for manufacturing solar battery, to increase light absorptivity, short circuit current density(Jsc) and hole mobility. CONSTITUTION: An electron donor polymer comprises: a repeating unit A which comprises a repeating unit indicated in chemical formula 1 and/or a repeating unit indicated in chemical formula 2 and a repeating unit indicated in chemical formula 3; and a repeating unit B comprising a repeating unit indicated in chemical formula 4 and a repeating unit indicated in chemical formula 5. An organic solar cell comprises an anode and a cathode facing each other, and a photoactive layer, which is between the anode and the cathode and comprises an electron acceptor and an electron donor. The electron donor comprises the electron donor polymer. |
