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a sio 2 @cdte@au Nanocomposites Preparation Method

A technology of nanocomposite materials and seeds, applied in the direction of luminescent materials, nanotechnology, nano-optics, etc., to achieve the effect of good nonlinear optical performance and compact polymer

Active Publication Date: 2020-10-30
ZHEJIANG UNIVERSITY OF MEDIA AND COMMUNICATIONS
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  • Claims
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Problems solved by technology

[0004] The embodiment of the present invention provides a SiO 2 @CdTe@Au nanocomposite preparation method to solve one of the technical problems mentioned above

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  • a sio <sub>2</sub> @cdte@au Nanocomposites Preparation Method
  • a sio <sub>2</sub> @cdte@au Nanocomposites Preparation Method
  • a sio <sub>2</sub> @cdte@au Nanocomposites Preparation Method

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] Terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of this application and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise, "multiple" Generally contain at least two.

[0037] It shou...

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Abstract

The invention relates to a preparation method of a SiO2@CdTe@Au nanocomposite. The SiO2@CdTe@Au nanocomposite mainly comprises silicon dioxide spheres, CdTe quantum dots and Au nanoparticles. According to the nanocomposite, bare silicon dioxide spheres adsorbs a layer of polydiene dimethyl ammonium chloride solution at first, then adsorbs the CdTe quantum dots, then adsorbs a layer of a solution prepared from poly(sodium 4-p-styrenesulfonate), adsorbs a layer of the polydiene dimethyl ammonium chloride solution next, and finally adsorbs the Au nanoparticles. According to the nanocomposite prepared by the method, the CdTe quantum dots and the Au nanoparticles can be firmly adsorbed on the silicon dioxide spheres, thereby obtaining the nanocomposite with optical and nonlinear optical characteristics.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a SiO 2 Preparation methods of @CdTe@Au nanocomposites. Background technique [0002] In the era when optics and nonlinear optics complement each other, various potential optical applications exist, such as human eye and optical sensor protection, optical power limitation, all-optical switching, optical data storage, electronic and photonic devices. Therefore, various related composite nanomaterials with optical and nonlinear optical effects of these properties have firmly attracted public attention. [0003] Nanoscale silica materials have become key carrier materials due to their large specific surface area, good chemical stability, non-toxicity, hydrophilicity and easy functionalization of surface silanols. For nanocomposite matrices, the morphology and dispersion of the material is also an innovation for the researchers. At the same time, quantum dots are ideal fluor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/88C09K11/02B82Y30/00B82Y20/00
CPCB82Y20/00B82Y30/00C09K11/025C09K11/883
Inventor 常青管静
Owner ZHEJIANG UNIVERSITY OF MEDIA AND COMMUNICATIONS
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