Unraveling the compositional heterogeneity and carrier dynamics of alkali cation doped 3D/2D perovskites with improved stability
Ming‐Chun Tang, Siyuan Zhang, Timothy J. Magnanelli, Nhan V. Nguyen, Edwin J. Heilweil, Thomas D. Anthopoulos, Christina A. Hacker
Abstract
-incorporated perovskite solar cells show a peak PCE of >20%, which is slightly higher than their 3D counterpart (19.5%). Benefited from moisture resistivity, the 3D/2D perovskite photovoltaics show significantly improved long-term stability by retaining 81% of the initial PCE after 60 days of exposure in ambient air (50 ± 10% relative humidity) without encapsulation, highlighting the potential of engineered stable 3D/2D perovskite solar cells for their commercial utilization.
Topics & Concepts
RubidiumAlkali metalDopingMaterials scienceChemical physicsChemistryPotassiumOptoelectronicsMetallurgyOrganic chemistryPerovskite Materials and ApplicationsGas Sensing Nanomaterials and SensorsConducting polymers and applications