Non-fullerene acceptors have successfully overcome energy losses that were thought to be unavoidable in organic solar cells based on fullerene derivatives. However, it is now shown that they have limits too.
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Hodgkiss, J.M. No free lunch for non-fullerene acceptors. Nat. Mater. 20, 289–290 (2021). https://doi.org/10.1038/s41563-020-00836-w
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DOI: https://doi.org/10.1038/s41563-020-00836-w
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