Polymeric viologen-based electron transfer mediator for improving the photoelectrochemical water splitting on Sb₂Se₃ photocathode.

ABSTRACT: The photogenerated charge carrier separation and transportation of inside photocathodes can greatly influence the performance of photoelectrochemical (PEC) H₂ production devices. Coupling TiO₂ with p-type semiconductors to construct heterojunction structures is one of the most widely used strategies to facilitate charge separation and transportation. However, the band position of TiO₂ could not perfectly match with all p-type semiconductors. Here, taking antimony selenide (Sb₂Se₃) as an example, a rational strategy was developed by introducing a viologen electron transfer mediator (ETM) containing polymeric film (poly-1,1'-dially-[4,4'-bipyridine]-1,1'-diium, denoted as PV²⁺) at the interface between Sb₂Se_3</

SUBMITTER: Liu C 

PROVIDER: S-EPMC11197680 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature