Boosting Long-Term Stability of Pure Formamidinium Perovskite Solar Cells by Ambient Air Additive Assisted Fabrication
K. M. Muhammed Salim, Sofia Masi, Andrés F. Gualdrón‐Reyes, Rafael S. Sánchez, Eva M. Barea, Marie Kreĉmarová, Juan F. Sánchez‐Royo, Iván Mora‐Seró
Abstract
) to 112 days (in ambient) to 145 days if PbS quantum dots (QDs) are introduced as additives in air-prepared FAPI PSCs. Furthermore, by adding methylammonium chloride (MACl) the power conversion efficiency (PCE) reaches 19.4% and devices maintain 100% of the original performance for at least 53 days. The presence of Pb-O bonds only in the FAPI films prepared in ambient conditions blocks the propagation of α- to δ-FAPI phase conversion. Thus, these results open the way to a new strategy for the stabilization in ambient air toward perovskite solar cells commercialization.
Topics & Concepts
FormamidiniumMaterials sciencePerovskite (structure)FabricationRelative humidityGloveboxPhotovoltaic systemChemical engineeringChemistryMeteorologyEcologyMedicinePathologyPhysicsOrganic chemistryEngineeringAlternative medicineBiologyPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesConducting polymers and applications