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A method for preparing photonic crystals by 3D printing

A photonic crystal, 3D printing technology, applied in 3D object support structure, additive manufacturing, manufacturing tools, etc., can solve the problems of difficult to prepare dielectric ratio, high three-dimensional photonic crystal, complex process, etc. Market prospect, simple process effect

Active Publication Date: 2017-04-26
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recently, some research groups have developed some more effective methods to prepare three-dimensional photonic crystals, such as preparing wood pile structures by layer-by-layer stacking method, or using monodisperse microspheres to prepare three-dimensional regular structures by self-assembly method. However, it is very difficult to use this method. Time-consuming and complicated process
In 2006, J. Moon's research group used an inkjet printer to prepare a photonic crystal microarray with bright colors for the first time, but its printing is limited to two-dimensional space, and it is difficult to prepare a photonic crystal microarray with a high dielectric ratio or a suitable network topology. 3D photonic crystal

Method used

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  • A method for preparing photonic crystals by 3D printing
  • A method for preparing photonic crystals by 3D printing
  • A method for preparing photonic crystals by 3D printing

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Experimental program
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Embodiment approach

[0027] Such as figure 1 As shown, the method for preparing a photonic crystal by 3D printing of the present application, an implementation thereof, comprises the following steps:

[0028] Step 102: using monodisperse colloidal particles to produce polymer raw materials for 3D printing;

[0029] Step 104: drawing a three-dimensional solid model of the photonic crystal;

[0030] Step 106: slice and layer the 3D solid model, and divide the 3D solid model into multiple 2D graphics; the sequence of steps in this application is not unique, and step 102 can also be placed after this step.

[0031] Step 108: using polymer raw materials, printing two-dimensional graphics on the substrate layer by layer, and curing layer by layer to obtain photonic crystals.

[0032] The method for preparing a photonic crystal by 3D printing of the present application, another embodiment thereof, comprises the following steps:

[0033] Step 202: Disperse the monodisperse colloidal particles in a solu...

Embodiment

[0049] Production of polymer raw materials for 3D printing: Disperse silica colloidal particles with a concentration of 50% (w / v) in ethanol to obtain an ethanol suspension containing colloidal particles, take a certain amount of the suspension and ethoxylate Hydroxyl trimethylolpropane triacrylate (ETPTA) monomer and 2-hydroxy-2-methyl-1-phenyl-1-propanone (HMPP) UV curing agent are mixed, so that the silica colloid in the mixture Particles at a concentration of 30% (v / v), ethoxylated trimethylolpropane triacrylate at a concentration of 10% (v / v), 2-hydroxy-2-methyl-1-phenyl-1- The acetone concentration was 1.5 wt%, and the mixture was sonicated until structural color was produced.

[0050] 3D printing: Use 3D Max drawing software to draw the three-dimensional solid model of the photonic crystal, and then slice the three-dimensional solid model into a series of two-dimensional graphics with equal thickness slices and layers, with a thickness of 20 μm. Scan all two-dimensiona...

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Abstract

The invention discloses a method for preparing photonic crystals through 3D (Three-Dimensional) printing. The method comprises the following steps of preparing macromolecule raw materials for 3D printing by using monodisperse colloidal particles, layering a three-dimensional solid model of photonic crystals into a plurality of two-dimensional patterns, printing the two-dimensional patterns layer by layer in sequence on a substrate and curing layer by layer to prepare three-dimensional photonic crystals which having high dielectric ratios or are suitable for network topology structures. Compared with a current preparation method of the photonic crystals, the method is quick and convenient, lo in investment costs of devices, simple in process, energy-saving and environmentally friendly and short in consumed time, and three-dimensional structure shapes of the prepared photonic crystals are diversified and extensive. The method is an ideal manner of preparing special-purpose photonic crystals in the future. The method is capable of realizing batch production; the prepared photonic crystals can be widely applicable to the scientific research and life of optical devices, tissue culture frames, super lyophobic liquid surface, anti-counterfeiting marks and ornaments, so that the photonic crystals are wide in market prospects.

Description

technical field [0001] The present application relates to the field of preparation of photonic crystals, in particular to a method for preparing photonic crystals by 3D printing. Background technique [0002] In recent years, by simulating the micro-nano structures of blue butterfly wings and volcanic opals, people have successfully developed one-dimensional, two-dimensional and three-dimensional photonic crystals by using precision machining methods and colloidal self-assembly methods. The preparation method and technology of the one-dimensional and two-dimensional photonic crystals are quite mature, and related products have been widely used. The preparation of three-dimensional photonic crystals is far behind the preparation of one-dimensional and two-dimensional photonic crystals. Even in the semiconductor industry, there is no method that can be used for reference to manufacture three-dimensional photonic crystals. Recently, some research groups have developed some mor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/124C08F292/00C08F220/28B33Y10/00
Inventor 杜学敏吴天准
Owner SHENZHEN INST OF ADVANCED TECH
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