PASSIVATING VACANCY DEFECTS IN PEROVSKITE MATERIALS

摘要

Embodiments include a passivated perovskite material and a method of passivating a perovskite material. A passivated perovskite material may include a perovskite material including a vacancy defect and an under-coordinated atom; and an organic pseudohalogen including an organic cation associated with a pseudohalogen moiety, wherein the pseudohalogen moiety passivates the vacancy defect by bonding to the under-coordinated atom. A method of passivating a perovskite material may include dispersing a perovskite material in a nonpolar solvent, the perovskite material including a vacancy defect and an under-coordinated atom; and mixing the perovskite material with an organic pseudohalogen, the organic pseudohalogen including a pseudohalogen group that passivates the vacancy defect by associating with the under-coordinated atom. Embodiments further include optoelectronic devices including the passivated perovskite material and the passivated perovskite material formed in accordance with the methods disclosed, herein.