Synthesis of model heterojunction interfaces reveals molecular-configuration-dependent photoinduced charge transfer.

ABSTRACT: Control of the molecular configuration at the interface of an organic heterojunction is key to the development of efficient optoelectronic devices. Due to the difficulty in characterizing these buried and (probably) disordered heterointerfaces, the interfacial structure in most systems remains a mystery. Here we demonstrate a synthetic strategy to design and control model interfaces, enabling their detailed study in isolation from the bulk material. This is achieved by the synthesis of a polymer in which a non-fullerene acceptor moiety is covalently bonded to a donor polymer backbone using dual alkyl chain links, constraining the acceptor and donor units in a through space co-facial arrangement. The constrained geometry of the acceptor relative to the electron-rich and -poor moieties in th

SUBMITTER: Royakkers J 

PROVIDER: S-EPMC11374675 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature