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Two dimeric non‐fullerene acceptors with an A‐D‐π‐A‐π‐D‐A structure, i.e., ITBIC‐F and TBTBIC‐F, have been successfully developed by introducing pyran as a ring‐locked bridge, resulting in significantly improved chemical and photochemical stabilities compared to traditional acceptors without the ring‐locked bridge. The ITBIC‐F and TBTBIC‐F‐based organic solar cells not only achieve promising efficiencies of 13.03% and 10.01%, respectively, but also show good long‐term device stability. More details are discussed in the article by Li et al. on pages 641—649. image