Self-Assembly Control of Y-Series Non-fullerene Acceptors for Sustainable and Scalable Organic Photovoltaics.

ABSTRACT: Sustainability and scalability remain critical hurdles for the commercialization of organic solar cells (OSCs). However, addressing both poses challenge. Herein, we introduce a simple yet effective strategy utilizing 3,5-dichloropyridine (PDCC) as a solid additive to fine-tune the self-assembly behavior of Y-series non-fullerene acceptors (NFAs) to tackle the upscaling limitations in green-solvent-processed OSCs. PDCC predominantly interacts with Y-series NFAs, facilitating molecular crystallization and thereby driving the self-assembly of Y-series NFAs during film-forming dynamics, leading to more uniform active layers with improved molecular packing and reduced charge recombination. As a result, PDCC-driven self-assembly strategy enables high-performance OSCs with a power conversion effi

SUBMITTER: Hu D 

PROVIDER: S-EPMC12765764 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature