19.31% binary organic solar cell and low non-radiative recombination enabled by non-monotonic intermediate state transition.

ABSTRACT: Non-fullerene acceptors based organic solar cells represent the frontier of the field, owing to both the materials and morphology manipulation innovations. Non-radiative recombination loss suppression and performance boosting are in the center of organic solar cell research. Here, we developed a non-monotonic intermediate state manipulation strategy for state-of-the-art organic solar cells by employing 1,3,5-trichlorobenzene as crystallization regulator, which optimizes the film crystallization process, regulates the self-organization of bulk-heterojunction in a non-monotonic manner, i.e., first enhancing and then relaxing the molecular aggregation. As a result, the excessive aggregation of non-fullerene acceptors is avoided and we have achieved efficient organic solar cells with reduced n

SUBMITTER: Fu J 

PROVIDER: S-EPMC10063688 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature