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Method for preparing crack-free photonic crystal on surface of super-hydrophobic organism or super-hydrophobic imitation organism

A super-hydrophobic imitation, photonic crystal technology, applied in crystal growth, chemical instruments and methods, single crystal growth, etc., can solve the problems of unsolved high-stacking crystal plane cracks, lack of universality, and potential safety hazards. Avoid diffuse reflection effect, peak intensity increase, low cost effect

Active Publication Date: 2013-05-15
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned methods for avoiding photonic crystal cracks have more or less the following disadvantages: 1. The cost is relatively high and the preparation process is cumbersome; 2. The environment is polluted and there are potential safety hazards; Although the cracks on the density crystal plane are avoided, the problem of cracks on the high accumulation crystal plane is not solved; 4. They are only applicable to certain specific latex particles and are not universal

Method used

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  • Method for preparing crack-free photonic crystal on surface of super-hydrophobic organism or super-hydrophobic imitation organism
  • Method for preparing crack-free photonic crystal on surface of super-hydrophobic organism or super-hydrophobic imitation organism
  • Method for preparing crack-free photonic crystal on surface of super-hydrophobic organism or super-hydrophobic imitation organism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]The monodisperse poly(styrene-methyl methacrylate-acrylic acid) latex particles with a particle diameter of 80nm are ultrasonically dispersed in water to form an emulsion (the concentration of the emulsion is 0.01wt%), and the resulting emulsion is heated at a temperature of 5°C , humidity is placed on the surface of lotus leaf (the contact angle of the surface of lotus leaf and water is 145 °) under the condition of 5%, by the described monodisperse poly (styrene-methyl methacrylate-acrylic acid) latex particle The self-gravity effect of the self-assembled self-assembled self-assembled poly(styrene-methyl methacrylate-acrylic acid) latex particles formed by the self-assembly of the monodisperse poly(styrene-methyl methacrylate-acrylic acid) latex particles is prepared on the surface of the lotus leaf. Crack-free opal-structured triblock copolymer poly(styrene-methyl methacrylate-acrylic acid) photonic crystals.

[0029] The high-quality self-supporting non-crack opal tr...

Embodiment 2

[0031] The monodisperse poly(styrene-methyl methacrylate-acrylic acid) latex particles with a particle diameter of 1100nm are ultrasonically dispersed in water to form an emulsion (the concentration of the emulsion is 30wt%). Humidity is placed on the surface of the rice leaf under the condition of 95% (the contact angle of the surface of the rice leaf and water is 135 °), by the described monodisperse poly (styrene-methyl methacrylate-acrylic acid) latex particles Self-gravity is deposited, and the photon band gap formed by the self-assembly of the monodisperse poly(styrene-methyl methacrylate-acrylic acid) latex particles is prepared on the surface of the rice leaf. Cracked opal-structured poly(styrene-methyl methacrylate-acrylic acid) photonic crystals.

[0032] The high-quality self-supporting poly(styrene-methyl methacrylate-acrylic acid) photonic crystal prepared above was used as a sacrificial template, and the TiO 2 The sol is filled into the gap between the monodispe...

Embodiment 3

[0034] Ultrasonic dispersion of monodisperse polystyrene latex particles with a particle size of 1100nm in water forms an emulsion (the concentration of the emulsion is 30wt%), and the resulting emulsion is placed in a butterfly under the condition that the temperature is 60°C and the humidity is 60%. The surface of the wing (the contact angle between the surface of the butterfly wing and water is 130 °), is deposited by the self gravity of the monodisperse polystyrene latex particles, and the surface of the butterfly wing is prepared by the monodisperse High-quality self-supporting non-crack opal structure polystyrene photonic crystals with photonic band gap formed by polystyrene latex particles self-assembly.

[0035] The high-quality self-supporting polystyrene photonic crystal with no crack opal structure prepared above was used as a sacrificial template, and the TiO 2 The sol is filled into the gaps between the monodisperse polystyrene latex particles constituting the sac...

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Abstract

The invention relates to a method preparing crack-free photonic crystals on a surface of a super-hydrophobic organism or a super-hydrophobic imitation organism. According to the invention, monodisperse microspheres are dispersed in water to form an emulsion; the emulsion is applied to the surface of the super-hydrophobic organism or the super-hydrophobic imitation organism, and the emulsion deposits depending on the gravity of the monodisperse microspheres in the emulsion, so that high-quality, self-supporting, crack-free, opal-structure photonic crystals formed by self-assembly of the monodisperse microspheres can be prepared on the surface of the super-hydrophobic organism or the super-hydrophobic imitation organism. The prepared of high-quality, self-supporting, crack-free, opal-structure photonic crystals are used as a sacrificial template; a functional material is filled in the gaps between the monodisperse microspheres forming the sacrificial template; and the sacrificial template is further removed to prepare the high-quality self-supporting, crack-free, inverse opal-structure photonic crystals. The invention has advantages of simple preparation method, low cost and environment-friendliness.

Description

technical field [0001] The invention relates to a method for preparing high-quality crack-free photonic crystals, in particular to preparing high-quality self-supporting crack-free opal structure photonic crystals on the surface of super-hydrophobic organisms or super-hydrophobic biomimetic organisms, and preparing high-quality self-supporting crack-free inverse opals Methods for Structuring Photonic Crystals. Background technique [0002] The concept of "photonic crystal" was first proposed in 1987. This kind of material with periodic refractive index has a special ability to control photons, which makes it widely used in optical devices, full-color display, biochemical detection and other fields. And far-reaching application prospects. The preparation of early photonic crystals mostly adopts the method of micromachining, which is relatively complicated and costly. And in recent years, due to the technical bottleneck of the micro-processing method itself, this traditional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B5/00C30B29/58C30B29/16
Inventor 陈硕然王京霞宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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