In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separation.

ABSTRACT: Donor-acceptor semiconducting polymers present countless opportunities for application in photocatalysis. Previous studies have showcased their advantages through direct bottom-up methods. Unfortunately, these approaches often involve harsh reaction conditions, overlooking the impact of uncontrolled polymerization degrees on photocatalysis. Besides, the mechanism behind the separation of electron-hole pairs (excitons) in donor-acceptor polymers remains elusive. This study presents a post-synthetic method involving the light-induced transformation of the building blocks of hyper-cross-linked polymers from donor-carbon-donor to donor-carbon-acceptor states, resulting in a polymer with a substantial intramolecular dipole moment. Thus, excitons are efficiently separated in the transformed poly

SUBMITTER: Cheng C 

PROVIDER: S-EPMC10864376 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature