CuInS2/In2S3/ZnS Fluorescent Quantum Dot with Double-layer Core-shell Structure and Preparation Method Thereof

摘要

The present invention provides a CuInS₂/In₂S₃/ZnS fluorescent quantum dot with a double-layer core-shell structure, aiming to overcome the defects of the existing CuInS₂ quantum dots. CuInS₂ serves as a core, In₂S₃ serves as a first shell for cladding the core, and ZnS serves as a second shell for cladding the first shell. The present invention further provides a preparation method for the CuInS₂/In₂S₃/ZnS fluorescent quantum dot with a double-layer core-shell structure. The CuInS₂ quantum dot is synthesized using two stabilizers, and indium thiophosphate serves as a monomolecular precursor of the In₂S₃ shell.