Citation: Li, Guoping; Feng, Liang-Wen; Mukherjee, Subhrangsu; Jones, Leighton O.; Jacobberger, Robert M.; Huang, Wei; Young, Ryan M.; Pankow, Robert M.; Zhu, Weigang; Lu, Norman; Kohlstedt, Kevin L.; Sangwan, Vinod K.; Wasielewski, Michael R.; Hersam, Mark C.; Schatz, George C.; DeLongchamp, Dean M.; Facchetti, Antonio; Marks, Tobin J. (2022). Non-fullerene acceptors with direct and indirect hexa-fluorination afford >17% efficiency in polymer solar cells. Energy & Environmental Science, 15, pp. 645-659.