Capturing excitonic and polaronic effects in lead iodide perovskites using many-body perturbation theory
Pooja Basera, Arunima Singh, Deepika Gill, Saswata Bhattacharya
Abstract
Lead iodide perovskites have attracted considerable interest as promising energy-materials. However, to date, several electronic and optical properties such as effective mass, exciton binding energy and radiative exciton lifetime are largely unknown.
Topics & Concepts
FormamidiniumExcitonPolaronBand gapDensity functional theoryHybrid functionalMaterials sciencePerturbation theory (quantum mechanics)DielectricBinding energyIonic bondingEffective mass (spring–mass system)Charge carrierOptoelectronicsCondensed matter physicsPhysicsPerovskite (structure)IonChemistryAtomic physicsQuantum mechanicsCrystallographyElectronPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsSemiconductor Quantum Structures and Devices