Comprehensive understanding of fluorination-performance relationship: The best-performed A-D-A-type acceptors.

ABSTRACT: Acceptor-donor-acceptor (A-D-A)-type nonfullerene acceptors (NFAs) have contributed to an efficiency breakthrough in organic solar cells (OSCs). However, the absence of an in-depth understanding of how to achieve high charge generation probability while guaranteeing low energy loss by molecular design has caused the stagnation of power conversion efficiency (PCE) in A-D-A-type acceptors. The fluorination strategy, as an effective approach to regulating molecular photoelectric and aggregation properties, can significantly affect device performance in OSCs. However, a comprehensive understanding of the relationship between fluorination and photovoltaic performance has been scarcely investigated thus far. Herein, a series of A-D-A-type acceptors, named ZITI-N-nF (n = 2, 4, 6, 8, repres

SUBMITTER: Jiang Y 

PROVIDER: S-EPMC12848250 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature