Design and regulation of high-performance photovoltaic systems based on novel two-dimensional KAgSe/KAgX (X = S, Te) van der Waals heterojunctions
Keying Han, Qiang Wang, Yan Liang, Thomas Frauenheim, Defeng Guo, Bin Wang
Abstract
KAgSe/KAgX (X = S, Te) van der Waals heterostructures: novel and adjustable two-dimensional photovoltaic materials with band alignment phase transitions from type-I to type-II and red-shifted photocurrent peaks in the visible light range under varying vertical electric field.
Topics & Concepts
PhotocurrentHeterojunctionvan der Waals forcePhotovoltaic systemElectric fieldMaterials scienceOptoelectronicsRange (aeronautics)Phase (matter)Condensed matter physicsPhysicsElectrical engineeringQuantum mechanicsMoleculeEngineeringComposite material2D Materials and ApplicationsPerovskite Materials and ApplicationsMXene and MAX Phase Materials