Correlating Hysteresis and Stability with Organic Cation Composition in the Two-Step Solution-Processed Perovskite Solar Cells
Yunkang Cui, Cong Chen, Chongwen Li, Lei Chen, Sandip S. Bista, Xiangyang Liu, You Li, Rasha A. Awni, Zhaoning Song, Yanfa Yan
Abstract
composition show a champion power conversion efficiency of over 21% and robust stability (retaining more than 90% of initial efficiency) under maximum power-point tracking in dry nitrogen for more than 500 h. Our work provides insights on understanding the formation of perovskite films in the two-step process, which may benefit further investigation on perovskite solar cells.
Topics & Concepts
Perovskite (structure)FormamidiniumEnergy conversion efficiencyMaterials scienceHysteresisHalideChemical engineeringPerovskite solar cellSolar cellSolar cell efficiencySolution processOrganic solar cellIodideInorganic chemistryOptoelectronicsChemistryComposite materialPolymerPhysicsQuantum mechanicsEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsSolid-state spectroscopy and crystallography