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Photonic crystal material with humidity response allochroic characteristic and preparing method thereof

A photonic crystal, humidity response technology, applied in the field of materials science, can solve problems such as easy introduction of defects and difficulty in preparing photonic crystal materials, and achieve the effect of broad application prospects.

Inactive Publication Date: 2015-12-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, artificially prepared photonic crystal materials have certain limitations, such as easy to introduce defects, and it is difficult to prepare photonic crystal materials with other complex hierarchical structures

Method used

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  • Photonic crystal material with humidity response allochroic characteristic and preparing method thereof
  • Photonic crystal material with humidity response allochroic characteristic and preparing method thereof
  • Photonic crystal material with humidity response allochroic characteristic and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The first step, the alkali treatment of the template: prepare a sodium hydroxide solution with a mass concentration of 10%, place the original bright spot on the hind wing of the Papilio paris, heat it to 50°C and keep it warm for 10 minutes, and then take out the wing , washed with deionized water to neutral and soaked in deionized water for 4 hours.

[0027] In the second step, a glutaraldehyde solution with a mass concentration of 5% was prepared, and the alkali-treated butterfly wing template was placed therein and kept at 60° C. for 1 hour. Remove the butterfly wings and wash them with deionized water.

[0028] The third step is to prepare the precursor solution: acrylamide (0.01mol), glutaraldehyde (1.5×10 -4 mol) (about 60 μL of 25% solution), potassium persulfate (1×10 -4 mol) was dissolved in 10 mL of deionized water. Place the butterfly wing template in the precursor solution and soak for 6 hours.

[0029] In the fourth step, the butterfly wings are taken ...

Embodiment 2

[0033] The first step, the alkali treatment of the template: prepare a sodium hydroxide solution with a mass concentration of 15%, place the original bright spot on the hind wing of the Papilio paris, heat it to 60°C and keep it warm for 10 minutes, and then take out the wing , washed with deionized water to neutral and soaked in deionized water for 4 hours.

[0034] In the second step, a glutaraldehyde solution with a mass concentration of 5% was prepared, and the alkali-treated butterfly wing template was placed in it and kept at 70° C. for 1 hour. Remove the butterfly wings and wash them with deionized water.

[0035] The third step is to prepare the precursor solution: acrylamide (0.01mol), glutaraldehyde (1×10 -4 mol) (about 40 μL of 25% solution), potassium persulfate (2×10 -4 mol) was dissolved in 6 mL of deionized water. Place the butterfly wing template in the precursor solution and soak for 8 hours.

[0036] In the fourth step, the butterfly wings are taken out f...

Embodiment 3

[0038] The first step, the alkali treatment of the template: prepare a sodium hydroxide solution with a mass concentration of 15%, place the original Morpho blue butterfly in it, heat it to 60°C and keep it warm for 10 minutes, then take out the butterfly wings and use a deionized Wash with water to neutral and soak in deionized water for 4 hours.

[0039] In the second step, a glutaraldehyde solution with a mass concentration of 10% was prepared, and the alkali-treated butterfly wing template was placed therein and kept at 60° C. for 1 hour. Remove the butterfly wings and wash them with deionized water.

[0040] The third step is to prepare the precursor solution: mix isopropylacrylamide (0.01mol), glutaraldehyde (1×10 -4 mol) (about 40 μL of 25% solution), azobisisobutyronitrile (1×10 -4 mol) was dissolved in 5 mL deionized water. Place the butterfly wing template in the precursor solution and soak for 12 hours.

[0041] In the fourth step, the butterfly wings are taken ...

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Abstract

The invention relates to a photonic crystal material with humidity response allochroic characteristic and a preparing method thereof, and belongs to the field of material science. The preparing method includes the steps that a biological material of a photon structure serves as a biological template and is soaked in a precursor solution containing monomers, an initiator and a crosslinking agent, after diffusive equilibrium is reached, the template is taken out and heated to be subjected to an in-situ polymerization reaction, by means of the chemical bond connection function of the crosslinking agent, the surface of the template is evenly covered with a polymer, the own special hierarchical photon structure is reserved, and the obtained composite material has the obvious humidity response allochroic characteristic. Compared with the prior art, the responsiveness photonic crystal material is of the special hierarchical structure, has excellent response characteristic in the humidity response aspect and has potential application prospects in the field of chemical sensing.

Description

technical field [0001] The invention belongs to the technical field of material science, and in particular relates to a photonic crystal material with humidity-responsive discoloration characteristics and a preparation method thereof. Background technique [0002] Photonic crystals refer to materials formed by two or more periodic arrangements with different dielectric constants. Combining materials with responsive properties with photonic crystals can obtain photonic crystal materials with responsive properties. Stimulus signals applied by the outside world It will change the physical and chemical properties of the responsive material, thus affecting the periodic structure or refractive index of the photonic crystal itself, causing the structural color of the material itself to change, and realizing the conversion of different signals into optical signals. In the field of responsive photonic crystals, humidity-responsive photonic crystals have been widely concerned, and hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/16C08J7/12C08J7/00C08F251/00C08F220/06C08F220/56C08F220/54G02B1/00
Inventor 朱申敏路涛张荻潘辉
Owner SHANGHAI JIAO TONG UNIV
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