PtxTey: Ag2Te quantum dot as well as synthesis method and application thereof

• Main Authors: TIAN ZHIQUAN, LIU JING
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2024
• Subjects: ADHESIVES; CHEMISTRY; DYES; HUMAN NECESSITIES; HYGIENE; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEASURING; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOTECHNOLOGY; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TESTING; TRANSPORTING

The invention relates to the technical field of near-infrared region quantum dots, in particular to a PtxTey: Ag2Te quantum dot and a synthesis method and application thereof, the quantum dot has a multi-layer structure, the interior of the quantum dot is Ag2Te quantum dot, the outer layer structure is PtxTey, x is any integer in 1-3, and y is any integer in 1-4. Compared with a traditional silver telluride quantum dot, the silver telluride quantum dot has a longer fluorescence emission wavelength which can reach 2200 nm, and compared with a method in the prior art, the upper limit of a wavelength regulation and control range is improved. The silver quantum dot is an NIR-II silver quantum dot, and has the characteristics of low toxicity, silver system and near-infrared region quantum dots. According to the synthesis method, the PtxTey is continuously grown on the surfaces of the Ag2Te quantum dots to obtain the PtxTey: Ag2Te quantum dots with different particle sizes and different fluorescence emission wavele