High photoluminescence quantum yield near-infrared emission from a lead-free ytterbium-doped double perovskite
Minh N. Tran, Iver J. Cleveland, Joseph R. Geniesse, Eray S. Aydil
Abstract
Yb 3+ ions substitute into Cs 2 AgBiBr 6 , specifically into the AgBr 6 5− and/or BiBr 6 3− octahedra, leading to a lead-free halide perovskite that converts UV and blue photons to near infrared photons with record 82.5% photoluminescence quantum yield.
Topics & Concepts
PhotoluminescenceYtterbiumQuantum yieldMaterials scienceDopingLuminescencePerovskite (structure)Band gapInfraredExcited stateOptoelectronicsThin filmFluorescenceAtomic physicsOpticsNanotechnologyChemistryPhysicsCrystallographyPerovskite Materials and ApplicationsLuminescence Properties of Advanced MaterialsSolid State Laser Technologies