“Perfluorobutanesulfonic Acid Enhances Photoluminescence, Stability, and Electrical Conductivity of Perovskite Nanocrystals”

https://pubmed.ncbi.nlm.nih.gov/38116681

The use of perfluorobutanesulfonic acid treatment after synthesis enhances both the photoluminescence and stability of perovskite nanocrystals, as well as the electrical conductivity of their close-packed films.