| abstract |
A conjugated polymer zwitterion includes repeating units having structure (I), (II), or a combination thereof n n n n n n n n n n wherein Ar is independently at each occurrence a divalent substituted or unsubstituted C 3-30 arylene or heteroarylene group; L is independently at each occurrence a divalent C 1-16 alkylene group, C 6-30 arylene or heteroarylene group, or alkylene oxide group; and R 1 is independently at each occurrence a zwitterion. A polymer solar cell including the conjugated polymer zwitterion is also disclosed. |