Ultrasmall water-stable CsPbBr<sub>3</sub> quantum dots with high intensity blue emission enabled by zeolite confinement engineering
Hongyue Zhang, Bolun Wang, Zijian Niu, Guangrui Chen, Buyuan Guan, Jiyang Li, Jihong Yu
Abstract
, PQDs with ultrasmall size of 2 nm have been obtained in the zeolite, giving emission centered at 460 nm with a high quantum yield of 76.93%. Strikingly, the PQDs@zeolite composite exhibits water-induced reversible photoluminescence promoted by the coordination between the amino acids and PQDs in a dynamic manner, achieving enhanced water stability (14 days in aqueous solution). This work provides a new perspective for the synthesis of water-stable blue-emitting perovskite composites for potential applications in lighting fields.
Topics & Concepts
Quantum dotZeoliteMaterials scienceEmission intensityOptoelectronicsNanotechnologyBlue lightIntensity (physics)LuminescenceOpticsPhysicsChemistryCatalysisOrganic chemistryPerovskite Materials and ApplicationsOptical properties and cooling technologies in crystalline materialsQuantum Dots Synthesis And Properties