TY - RPRT TI - Electron‐Deficient and Quinoid Central Unit Engineering for Unfused Ring‐Based A 1 –D–A 2 –D–A 1 ‐Type Acceptor Enables High Performance Nonfullerene Polymer Solar Cells with High V oc and PCE Simultaneously AU - Zhang, Chao AU - Song, Xin AU - Liu, Kai‐Kai AU - Zhang, Ming AU - Qu, Jianfei AU - Yang, Can AU - Yuan, Gui‐Zhou AU - Mahmood, Asif AU - Liu, Feng AU - He, Feng AU - Baran, Derya AU - Wang, Jin‐Liang PY - 2020 DO - 10.1002/smll.201907681 UR - https://www.osti.gov/biblio/1617525 ID - 1617525 ER -