Researchers pave the way for large-scale, efficient organic solar cells with water treatment

https://phys.org/news/2022-09-pave-large-scale-efficient-solar-cells.html

"water pushed on donor and acceptor molecules, causing dissolve into solution... water separate from solution... water removed and water-treated active solution prepare thin films of PTB7-Th: PC61BM (F, fullerene), PTB7-Th: EH-IDTBR (NF, fullerene), and PM6: Y6 (H-NF, high-efficiency non-fullerene)... water-treated active solution led to uniform active layer thin films, higher power conversion efficiencies... large-area OSC modules with active area 10 cm2... conversion efficiency 11.92% water-treated H-NF "