Achieving 19% efficiency in non-fused ring electron acceptor solar cells via solubility control of donor and acceptor crystallization

Rui Zeng, Ming Zhang, Xiaodong Wang, Lei Zhu, Bonan Hao, Wenkai Zhong, Guanqing Zhou, Jiawei Deng, Senke Tan, Jiaxin Zhuang, Fei Han, Anyang Zhang, Zichun Zhou, Xiaonan Xue, Shengjie Xu, Jinqiu Xu, Yahui Liu, Hao Lu, Xuefei Wu, Cheng Wang, Zachary Fink, Thomas P. Russell, Hao Jing, Yongming Zhang, Zhishan Bo, Feng Liu