Research progress on PM6:Y6-based ternary organic solar cells
Organic solar cells(OSCs)have attracted extensive attention because of their unique merits in light-weight,high flexibility,and printability.In recent years,the PCEs of OSCs have undergone great breakthroughs due to the development of new donor/acceptor materials.In particular,a high PCE of 15.7％was achieved in the OSCs adopting a wide bandgap polymer of PM6 and a new emerging non-fullerene acceptor of Y6,which makes PM6:Y6-based OSCs a research hotspot.However,a critical disadvantage in binary OSCs is the relatively narrow optical absorption,which limits further improvements on the PCE.Constructing ternary OSCs by introducing the third components with complementary absorption into the binary hosts has been proven to be an effective way to improve the efficiency of OSCs.The performance of PM6:Y6-based OSCs were greatly improved using the ternary strategy.Therefore,a comprehensive review on the recent progress in PM6:Y6-based ternary OSCs is needed.In this paper,the working mechanism of ternary OSCs is introduced firstly.Meanwhile,the role and selection criteria of the third component in ternary OSCs are explored.The research progress of PM6:Y6-based ternary OSCs constructed by polymer donors,small molecule donors,fullerene acceptors and non-fullerene acceptors as the third component are emphatically summarized.Finally,the future development of PM6:Y6-based ternary OSCs is also discussed.
organic solar cellsternary strategyPM6Y6efficiency
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维普
