A ligand strategy retarding monovalent copper oxidation toward achieving Cs<sub>3</sub>Cu<sub>2</sub>I<sub>5</sub> perovskite emitters with enhanced stability for lighting
Wenxuan Fan, Kaishuai Zhang, Shalong Wang, Leimeng Xu, Yingliang Liu, Jizhong Song
Abstract
A novel organic ligand (ethylenediaminetetraacetic acid, EDTA) was proposed to improve the stability of Cs 3 Cu 2 I 5 , which can inhibit the oxidation of Cu + in Cs 3 Cu 2 I 5 . The air-, photo- and thermal stability of EDTA-Cs 3 Cu 2 I 5 powder was greatly improved.
Topics & Concepts
PhotoluminescenceQuantum yieldEthylenediaminetetraacetic acidCopperPassivationX-ray photoelectron spectroscopyLigand (biochemistry)Perovskite (structure)HomolepticChemistryThermal stabilityMaterials scienceInorganic chemistryChelationChemical engineeringCrystallographyNanotechnologyMetalFluorescenceOrganic chemistryOptoelectronicsOpticsPhysicsEngineeringLayer (electronics)ReceptorBiochemistryPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesOrganic Light-Emitting Diodes Research