• • Asymmetric SMAs enable OPVs to achieve PCEs exceeding 21%, with specific examples reaching 20.82% efficiency via crystallization sequence manipulation (Chen et al., Nat Mater 2025).
• • Dual-asymmetric acceptors via selenium substitution and terminal group optimization achieve high efficiency, with one example reaching 19.12% in o-xylene processed devices (Zhou et al., Sci China Mater 2025).
• • Asymmetric side-chain substitution and glycolated substitution enhance permittivity and ecocompatibility, contributing to high-performance photovoltaic electron acceptors (Li et al., JACS Au 2021).
• • Multiple-asymmetric molecular engineering enables regioregular selenium-substituted acceptors with ultra-low energy loss and high efficiency in binary organic solar cells (Yang et al., Angew Chem Int Ed 2025).