Synchronous surface and bulk composition management for red-shifted light absorption and suppressed interfacial recombination in perovskite solar cells
Jun‐Xing Zhong, Jin‐Feng Liao, Yong Jiang, Lianzhou Wang, Dai‐Bin Kuang, Wu‐Qiang Wu
Abstract
Perovskite solar cells with a reverse vertical gradient distribution of α/δ-FAPbI<sub>3</sub> achieved a record efficiency of up to 21.9% owing to synergistic advantages of expanded photon harvesting and robust surface defect passivation.
Topics & Concepts
PassivationRecombinationPerovskite (structure)Absorption (acoustics)Materials scienceSurface (topology)OptoelectronicsEnergy conversion efficiencyPhotonChemical engineeringLayer (electronics)ChemistryOpticsNanotechnologyComposite materialPhysicsBiochemistryGeneMathematicsGeometryEngineeringPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films