Excited-State Dynamics in All-Polymer Blends with Polymerized Small-Molecule Acceptors.

ABSTRACT: Polymerizing small-molecular acceptors (SMAs) is a promising route to construct high performance polymer acceptors of all-polymer solar cells (all-PSCs). After SMA polymerization, the microstructure of molecular packing is largely modified, which is essential in regulating the excited-state dynamics during the photon-to-current conversion. Nevertheless, the relationship between the molecular packing and excited-state dynamics in polymerized SMAs (PSMAs) remains poorly understood. Herein, the excited-state dynamics and molecular packing are investigated in the corresponding PSMA and SMA utilizing a combination of experimental and theoretical methods. This study finds that the charge separation from intra-moiety delocalized states (i-DEs) is much faster in blends with PSMAs, but the loosed π

SUBMITTER: Liu Z 

PROVIDER: S-EPMC10427414 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature