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Preparation method of copper nanosphere particles with continuously adjustable size

A technology of spheres and metal nano-particles, which is applied in the field of continuously adjustable metal nano-spheres, can solve the problems of time-consuming, cumbersome preparation process, and the inability to control the continuous adjustment of particle size, so as to achieve the operation process Simple, simple preparation process, the effect of expanding the scope of application

Pending Publication Date: 2021-06-25
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above-mentioned problems that the preparation process is cumbersome, time-consuming, and the size of the particles cannot be continuously adjusted, the present invention provides a method for preparing metal nanospheres with continuously adjustable sizes, which can not only prepare continuously adjustable particle sizes Adjustable metal nanospheres, the preparation process is simple and time-consuming, and the size of the nanospheres can be precisely and continuously adjustable

Method used

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  • Preparation method of copper nanosphere particles with continuously adjustable size
  • Preparation method of copper nanosphere particles with continuously adjustable size

Examples

Experimental program
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Effect test

Embodiment example 1

[0022] (1) Use a diamond pen to cut the substrate (such as a silicon wafer) into 10 parts with a size of about 3mm×3mm.

[0023] (2) On the heater, stick the cut silicon chip on the copper block with paraffin, and extend the excessively long part out of the copper block. After cooling, use 1200-grit sandpaper to grind off the excessively long part of the silicon wafer to make a square silicon wafer with a size of about 2mmX2mm, ensuring that the central hollow ring of the gold and copper rings can be covered without exceeding the gold and copper rings range. Repeat this operation for the other 9 silicon wafers.

[0024] (3) Glue the obtained 2mm×2mm silicon wafer on the transparent cylinder with paraffin wax, put the transparent cylinder into a disk mill, and then calibrate it. Using 1200 grit sandpaper, subtract 200µm in thickness.

[0025] (4) Glue the reduced-thickness silicon wafer on the right-angle frame with paraffin, install the right-angle frame back to the Tripod ...

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Abstract

The invention discloses a preparation method of copper nanosphere particles with continuously adjustable size. By controlling different voltages and bombardment angles of an ion gun, metal nanosphere particles with different particle sizes can be obtained, and the particle sizes of the nanospheres can be accurately controlled, so that the required particle sizes are conveniently obtained, the operation is simple, and the method is widely applied to the fields of Raman enhancement, biological detection of solar cells and infrared bands and the like; by controlling the voltages, a thin film formed by the obtained metal nanosphere particles has the characteristics of strong adhesion, high speed, normal temperature, low damage and the like; and meanwhile, a substrate material is not limited by the method, and materials such as ceramics, semiconductors, glass and crystals can be realized through the method, so that the application range is very wide.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a method for preparing continuously adjustable metal nanospheres. Background technique [0002] Traditional physical methods for preparing metal nanoparticles include: physical crushing method, mechanical particle grinding method, and chemical methods include: chemical reduction method, hydrothermal synthesis method, sol-gel method, electrochemical reduction method, photochemical reduction method, etc. However, the preparation process of these methods is very cumbersome, time-consuming, and the experimental conditions are harsh, etc. The most important thing is that the particle size cannot be continuously adjustable, and the demand cannot be well met. Contents of the invention [0003] In order to solve the above-mentioned problems that the preparation process is cumbersome, time-consuming, and the size of the particles cannot be continuously adjusted, the present invention prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/14B22F1/00B82Y15/00B82Y30/00B82Y40/00
CPCB22F9/14B82Y30/00B82Y40/00B82Y15/00B22F1/065B22F1/054
Inventor 修慧欣张洋
Owner UNIV OF SHANGHAI FOR SCI & TECH
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