Hybrid perovskite solar cells (PVSCs) are extremely susceptible to moisture and heat which restricts their commercial viability. Herein, three multifunctional fluoroaromatic amine additives i.e. 4-fluoroaniline (FA), 2,4,6-trifluoroaniline (TFA) and 2,3,4,5,6-pentafluoroaniline...
Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.