Molecule occupancy by a n-butylamine treatment to facilitate the conversion of PbI2 to perovskite in sequential deposition

Abstract

Herein, we propose a new approach of molecule occupancy via a vapor treatment to facilitate the conversion of PbI₂ to perovskite in sequential deposition. We have shown that the morphology of PbI₂ and the subsequent crystallization of perovskite can be effectively tuned, thus leading to the elimination of residual PbI₂ and promotion of perovskite growth.