biostudies-literatureUnknown3(2)Wieland LAn organic solar cell with single-walled carbon nanotubes (SWCNTs) in the photoactive layer is typically a type II heterojunction with the semiconducting SWCNTs acting as the electron donor and C₆₀ or other fullerene derivatives as the acceptor. Herein, the performance of solar cells consisting of (6,5) SWCNTs combined with C₆₀ and three nonfullerene acceptors is evaluated in a bilayer architecture. SWCNTs are then combined with the donor/acceptor PM6:Y6 in a ternary mixture and both bulk heterojunction and bilayer devices are fabricated. The SWCNTs are found to extend the light absorption of PM6:Y6 solar cells into the infrared but their use must strike a balance between the SWCNT concentration to enhance light absorption and solvent-induced changes to the morphology of the active layer.Small science2200079https://www.ebi.ac.uk/biostudies/studies/S-EPMC11935985biostudies-literatureTernary PM6:Y6 Solar Cells with Single-Walled Carbon Nanotubes.PMC11935985Li HFlavel BSWieland LChen JZhang XfalseTernary PM6:Y6 Solar Cells with Single-Walled Carbon Nanotubes.An organic solar cell with single-walled carbon nanotubes (SWCNTs) in the photoactive layer is typically a type II heterojunction with the semiconducting SWCNTs acting as the electron donor and C₆₀ or other fullerene derivatives as the acceptor. Herein, the performance of solar cells consisting of (6,5) SWCNTs combined with C₆₀ and three nonfullerene acceptors is evaluated in a bilayer architecture. SWCNTs are then combined with the donor/acceptor PM6:Y6 in a ternary mixture and both bulk heterojunction and bilayer devices are fabricated. The SWCNTs are found to extend the light absorption of PM6:Y6 solar cells into the infrared but their use must strike a balance between the SWCNT concentration to enhance light absorption and solvent-induced changes to the morphology of the active layer.2023-01-01T00:00:00Z2023 Feb2025-07-05T03:04:32.564Z2025-07-05T03:04:32.564ZS-EPMC119359854021349110.1002/smsc.202200079