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The rapid developments of nonfullerene small molecular acceptors (NF-SMAs) have dominated the improvement of photoelectron conversion efficiencies (PCEs) for organic solar cells. Light absorption reaching the near-infrared (NIR) region is the primary feature for NF-SMAs compared with fullerene derivatives, enabling their enhanced efficiencies in solar cells and further application in semitransparent or tandem devices. In this article, a series of acceptor-donor-acceptor-structured NF-SMAs (named CPICs ) containing 4H-cyclopenta[1,2-b5,4-b']dithiophene (CPDT