Orientation-Controlled (0) PbI Crystallites Using a Novel Pb-Precursor for Facile and Quick Sequential MAPbI Perovskite Deposition.

Organic-inorganic hybrid lead halide perovskites have shown significant progress in the last few years having achieved efficiencies over 25% at the lab scale. The sequential deposition technique has provided a robust approach in the perovskite film fabrication. However, obtaining a reproducible and quality perovskite film has always been challenging because of the highly crystalline and ordered (001) oriented underlying PbI film.