Rationally regulating the terminal unit and copolymerization spacer of polymerized small-molecule acceptors for all-polymer solar cells with high open-circuit voltage over 1.10 V

Two polymerized small molecule acceptors with wide bandgaps of ∼1.65 eV and high-lying LUMO energy levels above −3.70 eV were designed by introducing a novel terminal unit. Efficient all-PSCs with high VOC over 1.10 V were achieved.

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