Combining poly(fluorine-co-benzotriazole) (PFN) with (gold-Au) in the ETL layer in Perovskite Solar cells to increase electron conductivity and reduce electron loss at the boundary between layers. pubs bcnf. 2025;2(7). Accessed February 20, 2026. https://pubs.bcnf.ir/index.php/Articles/article/view/552