Alkoxy substitution on asymmetric conjugated molecule enables high-efficiency ternary organic solar cellssol

https://techxplore.com/news/2022-12-alkoxy-substitution-asymmetric-conjugated-molecule.html

"doped into PM6:BTP-eC9-based binary organic solar cells as third component... power conversion efficiency 18.1%... synthesized three asymmetric skeleton non-fullerene acceptors, i.e., TB-S, TB-S1, and TB-S1-O, and employed them as the third component in the host binary system of PM6:BTP-eC9, respectively... possessed wide band gap, stable planar conformation, high surface energy, excellent compatibility with host materials, and large ordered stacking domain"

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