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Method for preparing ordered array of metal nano-particles with adjustable space and appearance

A technology of metal nanoparticles and ordered arrays, applied in nanostructure manufacturing, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problem that the preparation method of nanoparticle arrays is not suitable for industrial production, and achieve decorative effects Good, low energy consumption, strong metallic effect

Inactive Publication Date: 2013-02-13
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the existing preparation methods of nanoparticle arrays with adjustable spacing and morphology are not suitable for industrial production, the present invention provides a method for preparing ordered arrays of metal nanoparticles with adjustable spacing and morphology suitable for industrial production , the method is simple, efficient, low-cost, and easy for large-scale production

Method used

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  • Method for preparing ordered array of metal nano-particles with adjustable space and appearance
  • Method for preparing ordered array of metal nano-particles with adjustable space and appearance
  • Method for preparing ordered array of metal nano-particles with adjustable space and appearance

Examples

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Effect test

Embodiment 1

[0047] In an oxygen atmosphere of 10 Pa, adjust the power of the plasma cleaning machine to 30 W, clean the surface of the single crystal silicon substrate for 30 min, and take out the substrate; use the liquid surface self-assembly method to uniformly spread a layer of 460nm layer of polystyrene nanospheres. In an oxygen atmosphere of 10 Pa, the power of the plasma cleaner was adjusted to 30 W, and the silicon substrate covered with polystyrene nanosphere layer was etched for 1 min with the plasma cleaner.

[0048] Using the etched polystyrene nanosphere layer as a template, a vacuum coating machine was used in 2×10 -3 Under the vacuum degree of Pa, 10 nm of cadmium was first deposited on the surface of the polystyrene nanosphere layer template, and then 30 nm of gold was deposited, and the deposition rate was 3 nm·min. -1, forming a cadmium-gold film. The self-assembled layer of polystyrene nanospheres was dissolved in chloroform solution, washed with absolute ethanol and...

Embodiment 2

[0051] In an oxygen atmosphere of 10 Pa, adjust the power of the plasma cleaning machine to 30 W, clean the surface of the single crystal silicon substrate for 30 min, and take out the substrate; use the liquid surface self-assembly method to uniformly spread a layer of diameter 460 nm layer of polystyrene nanospheres. In an oxygen atmosphere of 10 Pa, the power of the plasma cleaner was adjusted to 30 W, and the silicon substrate covered with polystyrene nanosphere layer was etched for 2 min with the plasma cleaner.

[0052] Using the etched single-layer polystyrene nanometer as a template, a vacuum coating machine was used in 2×10 -3 Under the vacuum degree of Pa, 10 nm of cadmium was first deposited on the surface of the polystyrene nanosphere layer template, and then 30 nm of gold was deposited, and the deposition rate was 3 nm·min. -1 , forming a cadmium-gold film. The self-assembled layer of polystyrene nanospheres was dissolved in chloroform solution, washed with abs...

Embodiment 3

[0055] In an oxygen atmosphere of 10 Pa, adjust the power of the plasma cleaning machine to 30 W, clean the surface of the single crystal silicon substrate for 30 min, and take out the substrate; use the liquid surface self-assembly method to uniformly spread a layer of 460 nm layer of polystyrene nanospheres. In an oxygen atmosphere of 10Pa, the power of the plasma cleaner was adjusted to 30W, and the silicon substrate covered with polystyrene nanospheres was etched for 5 min with the plasma cleaner.

[0056] Using the etched single-layer polystyrene nanosphere layer as a template, a vacuum coating machine was used in 2×10 -3 Under the vacuum degree of Pa, 10 nm of cadmium was first deposited on the surface of the polystyrene nanosphere layer template, and then 30 nm of gold was deposited, and the deposition rate was 3 nm·min. -1 , forming a cadmium-gold film. The self-assembled layer of polystyrene nanospheres was dissolved in a chloroform solution, washed with absolute e...

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Abstract

The invention discloses a method for preparing an ordered array of metal nano-particles with adjustable space and appearance. According to the method, a self-assembled compactly-arranged nano-sphere layer used as a template is etched by adopting an etching method to change the space, size and appearance of the nano-spheres, then a metal material is deposited on the nano-sphere layer used as the template by adopting a thermal vapor deposition method, and the nano-sphere layer is removed to obtain the ordered array of the metal nano-particles. The ordered array of the metal nano-particles is arranged orderly and periodically repeated, and the nano-particles are basically same in size. The method provided by the invention adopts reliable techniques and simple processes, has low cost and can be used for industrially producing the high-quality orderly-arranged nano-particles with adjustable space and appearance.

Description

[0001] technical field [0002] The invention belongs to the field of nanometer materials, and in particular relates to a method for preparing an ordered array of metal nanoparticles whose spacing and shape can be adjusted. Background technique [0003] When the size of the material reaches the nanometer level, it will have many peculiar physical properties, showing properties that are different from the corresponding bulk materials and different from individual molecules. However, as the particle size of the material decreases, the surface energy increases, and the particles are more likely to agglomerate, which will cover up many excellent properties. If the nanoparticles of the same size are regularly arranged on a two-dimensional plane in a certain way to form an ordered two-dimensional array system of nanoparticles, the properties of this type of nanomaterials can be well expressed. [0004] Generally speaking, there are two ways to prepare this ordered two-dimensional...

Claims

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Application Information

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IPC IPC(8): B82B3/00B82Y30/00
Inventor 肖湘衡郑俊丰戴志高应见见任峰蒋昌忠
Owner WUHAN UNIV
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