Jinlong Cai's work on fluorinated solid additives to enhance efficiency of OPVs is published in JMCA

       Jinlong Cai's recent work on fluorinated solid additives to enhance the efficiency and stability of non-fullerene OPVs is published in JMCA! These solid additives can enhance the pai-pai stacking of non-fullerene acceptors during solution casting, but then evaporate from the active layer of OPVs upon moderate thermal annealing at about 100 ^oC. By replacing liquid additive DIO with these solid additives, we show that they can enhacne the PCE of PBDB-T-2F:BTP-4F binary cells from 15.2% to 16.5%, and that of PBDB-T-2F:IT-4F from 12.1% to 13.4%.