CAS Key Laboratory of Nanosystem and Hierarchical Fabrication;
CAS Center for Excellence in Nanoscience;
National Center for Nanoscience and Technology;
Beijing 100190;
China;
Center of Materials Science and Optoelectronics Engineering;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
College of Chemistry;
Nanchang University;
Nanchang 330031;
China;
Henan Institutes of Advanced Technology;
Zhengzhou University;
Zhengzhou 450003;
China;
Organic solar cells; Non-fullerene acceptor; Benzotriazole; Side-chain strategy;