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Method for assembling periodic nanostructure on plane or curved surface by utilizing soft matter interface

A nanostructure and soft material technology, applied in the direction of nanotechnology, can solve the problem of few applications of hydrogel interfaces, and achieve the effects of high absorption reflection ability, high reflection and absorption ability, and high reflectivity

Active Publication Date: 2020-06-09
段忆翔 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as a special interface with solid-liquid interface properties, hydrogel interface has little application in the field of materials science.

Method used

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  • Method for assembling periodic nanostructure on plane or curved surface by utilizing soft matter interface
  • Method for assembling periodic nanostructure on plane or curved surface by utilizing soft matter interface
  • Method for assembling periodic nanostructure on plane or curved surface by utilizing soft matter interface

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Embodiment 1

[0041] A method for assembling periodic nanostructures on a plane or a curved surface by using a soft matter interface, which realizes the rapid and low-cost preparation of large-area periodic nanostructure materials with high reflectivity and absorption reflection capability, comprising the following steps:

[0042] 1) Use water or water / PEG mixed solution as a solvent to prepare an aqueous gel solution with a suitable concentration (0.2-2% concentration, preferably, the concentration value is 1%), and then sonicate until the gel monomer (such as agarose) is completely Dissolution; where water is used as a solvent to match the polarity and ionic strength of the solvent in the colloidal suspension of assembled microspheres; ultrasonic treatment can completely dissolve the solid gel monomer (such as agarose) into water;

[0043]2) Take the result of step 1) and heat it to boiling, then slowly cool it to a semi-solid state, pour it on the target surface (flat or curved surface), ...

Embodiment 2

[0048] This embodiment is further optimized on the basis of the above-mentioned embodiments, and the same parts as the aforementioned technical solutions will not be repeated here. Further, in order to better realize the present invention, the following setting method is adopted in particular: the water / PEG mixing The solution was obtained by mixing water and PEG and stirring well.

Embodiment 3

[0050] This embodiment is further optimized on the basis of any of the above-mentioned embodiments, and the same parts as the aforementioned technical solutions will not be repeated here. Further, in order to better realize the present invention, the following setting method is adopted in particular: the PEG selection The molecular weight range of the PEG is 100~1000; the preferred molecular weight of the PEG is 200.

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Abstract

The invention discloses a method for assembling a periodic nanostructure on a plane or a curved surface by using a soft substance interface, which comprises the following steps: (1) preparing a gel aqueous solution with proper concentration by using water or a water / PEG mixed solution as a solvent, and carrying out ultrasonic treatment until a gel monomer is completely dissolved; (2) heating the hydrogel obtained in the step (1) to boil, cooling the hydrogel to a semi-solid state, pouring the hydrogel on a target surface, removing bubbles and flattening the surface; (3) slowly cooling the system in the step (2) at room temperature, and after the hydrogel is completely solidified, blowing and washing with clean air until no obvious water drop trace exists on the surface of the hydrogel; (4)cutting off irregular hydrogel, and dropwise adding a proper amount of microsphere colloid suspension on the surface of the hydrogel, and (5) drying the hydrogel obtained in the step (4) in an environment with the temperature of 30-90 DEG C. Rapid and low-cost preparation of the large-area periodic nano-structure material with high reflectivity and absorption and reflection capabilities is realized.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a method for assembling periodic nanostructures on a plane or a curved surface by utilizing a soft matter interface. Background technique [0002] Photonic crystals (PCs) are typical and extensively studied periodic nanostructured materials with a variety of special optical properties, including photonic bandgap (PBG), photon localization, low photon effect, and fluorescence enhancement effect. Based on these unique optical properties, PCs have great application potential in the fields of photonic devices, nanomaterials, solar cells, and chemical biosensing. [0003] In recent years, various methods for preparing photonic crystal materials have been reported, which can be divided into two categories. The first method is a top-down fabrication strategy, including photolithography, which requires cumbersome operations and expensive large-scale equipment, such as p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/075C08L5/12B82Y40/00
CPCC08J3/075B82Y40/00C08J2305/12
Inventor 段忆翔吴孟璠
Owner 段忆翔
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