Preparation method of inverse opal hydrogel photonic crystal with double layer hybridized structure

A hybrid structure, inverse opal technology, used in optics, nonlinear optics, instruments, etc., can solve problems such as limited application and fragility

Inactive Publication Date: 2010-02-24
CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The development of layered photonic crystals with different lattice constants will further promote the application of photonic crystals, b

Method used

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  • Preparation method of inverse opal hydrogel photonic crystal with double layer hybridized structure

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Embodiment 1

[0011] (1) Disperse the uniform monodisperse silica microspheres in ethanol to form a solution with a mass fraction of 4%, then pour the solution into a clean container, and finally insert the clean substrate vertically into the above-mentioned In a container containing a monodisperse silica microsphere ethanol solution, place it in a closed environment at room temperature for one week to deposit the silica microspheres on the surface of the substrate to form opal colloidal crystals. The substrate is a glass sheet or Silicon wafer; the diameter of the silica microspheres is 180nm;

[0012] (2) Immerse the vertical liquid surface of the substrate processed in step (1) in the polyacrylic acid monomer solution for 3 minutes. The concentration of the polyacrylic acid monomer solution is 5M, and the polyacrylic acid monomer solution contains 10% crosslinked agent N, N'-methylenebisacrylamide and 3% photoinitiator 1-hydroxycyclohexylbenzophenone, so that polyacrylic acid monomers ca...

Embodiment 2

[0015] (1) Disperse the uniform monodisperse silica microspheres in ethanol to form a solution with a mass fraction of 1%, then pour the solution into a clean container, and finally insert the clean substrate vertically into the above-mentioned In a container containing a monodisperse silica microsphere ethanol solution, place it in a closed environment at room temperature for one week to deposit the silica microspheres on the surface of the substrate to form opal colloidal crystals. The substrate is a glass sheet or Silicon wafer; the diameter of the silica microspheres is 232nm;

[0016] (2) Immerse the vertical liquid surface of the substrate processed in step (1) in the polyacrylic acid monomer solution for 3 minutes, the concentration of the polyacrylic acid monomer solution is 4M, and the polyacrylic acid monomer solution contains 5% crosslinked agent N, N'-methylenebisacrylamide and 3% photoinitiator 1-hydroxycyclohexylbenzophenone, so that polyacrylic acid monomers can...

Embodiment 3

[0019] (1) Disperse the uniform monodisperse silica microspheres in ethanol to form a solution with a mass fraction of 0.5%, then pour the solution into a clean container, and finally insert the clean substrate vertically into the above-mentioned In a container containing a monodisperse silica microsphere ethanol solution, place it in a closed environment at room temperature for one week to deposit the silica microspheres on the surface of the substrate to form opal colloidal crystals. The substrate is a glass sheet or Silicon wafer; the diameter of the silica microspheres is 300nm;

[0020] (2) Immerse the vertical liquid surface of the substrate processed in step (1) in the polyacrylic acid monomer solution for 3 minutes. The concentration of the polyacrylic acid monomer solution is 1M, and the polyacrylic acid monomer solution contains 1% crosslinked agent N, N'-methylenebisacrylamide and 3% photoinitiator 1-hydroxycyclohexylbenzophenone, so that polyacrylic acid monomers c...

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Abstract

The invention relates to a preparation method of inverse opal hydrogel photonic crystal with double layer hybridized structure. The preparation method has the advantages that: the raw materials are polyacrylic acid and polyacrylamide which are available, and the preparation method includes two filling gather steps and is simple and practicable; and the polyacrylic acid and polyacrylamide respectively contains carboxyl and amide functional group, thus simultaneously realizing pH and solvent sense response, and the polyacrylamide can be used as internal parameter reference to monitor pH responsecondition when not responding to pH in solution with pH value less than 8.

Description

technical field [0001] The invention relates to a method for preparing an inverse opal hydrogel photonic crystal with a double-layer hybrid structure. Background technique [0002] Photonic crystals are a periodic structure composed of materials with different refractive indices alternating in space. Due to the existence of the photonic band gap, people can control various wavelengths of light by designing the band gap, and obtain a variety of new optical devices. Among them, photonic crystals constructed of hydrogels can greatly adjust the position of the photonic band gap under different external stimuli to control the propagation of light. This material has gradually been developed into various sensors, displays and biomimetic materials. Usually, the structure of hydrogel photonic crystals is polymerized crystal colloidal array structure, opal structure and inverse opal structure. The inverse opal structure has great advantages in the application of hydrogel photonic cry...

Claims

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Application Information

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IPC IPC(8): G02F1/00C08J9/26C08L33/02C08L33/26C03C17/32
Inventor 韩艳春王建颖邢汝博
Owner CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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