A Polymer Acceptor with Grafted Small Molecule Acceptor Unit for Efficient All Polymer Organic Solar Cells

A polymer acceptor, named PX-1, is designed and synthesized using a polymerization strategy with grafted small molecule acceptors. This design approach allows for the freedom of end groups while maintaining efficient terminal packing, enhancing & pi;-& pi; interactions, and facilitating charge transport. All-polymer organic solar cells based on PM6: PX-1 demonstrate a promising efficiency of 13.55%. The result presents an alternative pathway for the design of high-efficiency polymer acceptors through the careful regulation of small molecule acceptor monomers and linker units. A polymer acceptor, named PX-1, is designed and synthesized using a polymerization strategy with grafted small molecule acceptors. This design approach allows for the freedom of end groups while maintaining efficient terminal packing, enhancing & pi;-& pi; interactions, and facilitating charge transport. All-polymer organic solar cells based on PM6: PX-1 demonstrate a promising efficiency of 13.55%.image

Automated summary

A polymer acceptor, PX-1, is synthesized using a polymerization strategy with grafted small molecule acceptors. This approach allows for freedom of end groups, efficient terminal packing, enhanced π-π interactions, and facilitated charge transport. All-polymer organic solar cells based on PM6:PX-1 achieve a promising efficiency of 13.55%. This study presents an alternative pathway for designing high-efficiency polymer acceptors through careful regulation of small molecule acceptors and linker units.