Star-branched polymer donors enabling high-performance organic solar cells with superior flexibility and intrinsic stretchability

C Cen Zhang X Xiaopeng Duan C Chunhui Liu L Luoxi Pei J Junjie Zhang B Baixue Chang M Min Hun Jee H Han Young Woo L Long Ye (School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Key Laboratory of Organic Integrated Circuits, Ministry of Education, Collaborative innovation Center of Chemical Science and Engineering (Tianjin)) X Xiaobo Sun Y Yanming Sun