Lead telluride quantum dots and preparation method and application thereof

A technology of lead telluride and quantum dots, which is applied in chemical instruments and methods, electrical components, nanotechnology, etc., can solve the problems of simple preparation methods of lead telluride quantum dots that have not been reported by anyone, and the influence of material intrinsic characteristics. Wide range of applications, convenient use, good dispersion effect
CN113755174APending Publication Date: 2021-12-07HANGZHOU NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU NORMAL UNIVERSITY
Publication Date
2021-12-07

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Abstract

The invention discloses a preparation method of lead telluride quantum dots, which comprises the following steps: continuously introducing inert gas, adding lead telluride powder into a solvent, carrying out probe ultrasonic treatment for 6-12 hours at a water bath temperature of 10-15 DEG C, carrying out water bath ultrasonic treatment for 48-72 hours, centrifuging, and carrying out vacuum drying to obtain the lead telluride quantum dots. The preparation method is simple and efficient, the impurity amount of the prepared lead telluride quantum dots is small, the size distribution is uniform, and the invention further discloses the lead telluride quantum dots prepared through the preparation method of the lead telluride quantum dots. The lead telluride quantum dot is uniform in size, the characteristic absorption peak in an ultraviolet visible-near infrared spectrum is 450-550 nanometers, and the lead telluride quantum dot can be used as an active material in a photoelectrochemical photoelectric detector.
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Description

technical field

[0001] The invention belongs to the technical field of nanometer material preparation and specifically designs a lead telluride quantum dot and a preparation method thereof. Background technique

[0002] Nanowire is a one-dimensional structure whose lateral size is at the nanoscale and vertically unlimited. According to the different materials, it can be divided into metal nanowires, semiconductor nanowires and insulator nanowires. Because of its unique thermal, optical, electrical and magnetic properties, it has a wide range of applications in the fields of microprocessors, micro sensors, new optoelectronic devices and information storage. Quantum dots are a zero-dimensional nanostructure, generally considered to be nanoparticles with a particle size of less than 20nm. Due to its large specific surface area, more prominent quantum confinement effect, quantum size effect and macroscopic tunnel effect, it has potential application value in the fields of biome...

Claims

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