Open access
Aug 2026
Cationic fluorination of ammonium salts boosts defect passivation for efficient and stable inverted perovskite solar cells
Defect-induced non-radiative recombination and insufficient long-term stability hinder the commercial viability of organic-inorganic lead halide perovskites. Here we compare ethylammonium iodide (EAI) with its fluorinated analog 2,2,2-trifluoroethylammonium iodide (TFEAI) as additives in methylammonium lead triiodide (...
Xiao Wang, Hai-Lin Yang, Yong-Jie Wu et al.
· Physica Scripta · 0 citations