Suppressed ion migration in powder-based perovskite thick films using an ionic liquid
Philipp Ramming, Nico Leupold, Konstantin Schötz, Anna Köhler, Ralf Moos, Helen Grüninger, Fabian Panzer
Abstract
Here we add BMIMBF 4 during the mechanochemical synthesis of MAPbI 3 . Based on detailed photoluminescence and electrical measurements, we demonstrate a passivation of defects in the powder pellets that also leads to a suppression of ion migration.
Topics & Concepts
Materials sciencePassivationPhotoluminescenceIonPerovskite (structure)Ionic liquidChemical engineeringIonic bondingPelletsInorganic chemistryOptoelectronicsNanotechnologyComposite materialCatalysisOrganic chemistryLayer (electronics)EngineeringChemistryPerovskite Materials and Applications2D Materials and ApplicationsSolid-state spectroscopy and crystallography