A dendritic hexamer acceptor enables 19.4% efficiency with exceptional stability in organic solar cells.

ABSTRACT: To achieve the commercialization of organic solar cells (OSCs), it is crucial not only to enhance power conversion efficiency (PCE) but also to improve device stability through rational molecular design. Recently emerging giant molecular acceptor (GMA) materials offer various advantages, such as precise chemical structure, high molecular weight (beneficial to film stability under several external stress), and impressive device efficiency, making them a promising candidate. Here, we report a dendritic hexamer acceptor developed through a branch-connecting strategy, which overcomes the molecular weight bottleneck of GMAs and achieves a high production yield over 58%. The dendritic acceptor Six-IC exhibits modulated crystallinity and miscibility with the donor, thus better morphology performa

SUBMITTER: Jia T 

PROVIDER: S-EPMC11747272 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature