State Key Laboratory of Silicon Materials;
MOE Key Laboratory of Macromolecular Synthesis and Functionalization;
Department of Polymer Science and Engineering;
Zhejiang University;
Hangzhou;
310027;
China;
Department of Chemistry;
Zhejiang University;
Hangzhou;
310027;
China;
Polymer solar cells; Non-fused ring acceptor; Unaxisymmetric aromatic chains; Photostability;