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Simple preparation method for artificial opal

An opal and artificial technology, applied in the field of artificial opal preparation, can solve the problems of a lot of manpower and material resources, complicated operation, complex gluing, etc., and achieve the effects of easy reuse, few defects, and simple and easy operation.

Inactive Publication Date: 2008-02-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this technology requires complex gluing, photolithography and other steps, and requires a variety of templates to form a photoresist frame. The process technology requires high technology, complex operation, and requires a lot of manpower and material resources.

Method used

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  • Simple preparation method for artificial opal

Examples

Experimental program
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Effect test

Embodiment 1

[0022] The preparation of embodiment 1 colloidal bead solution

[0023] In parts by volume, mix 40 parts of absolute ethanol, 8 parts of deionized water, and 1 part of ammonia water (concentration of 30% by mass), and add 2 parts of ethyl orthosilicate in a 40-degree water bath after the temperature is stabilized, 40 parts Heating in a water bath for 4 hours, finally adding 40 parts of water and mixing evenly, then concentrating the system to the volume before adding water to obtain a seed sample.

[0024] In parts by volume, mix 2 parts of seed samples, 40 parts of absolute ethanol, 8 parts of deionized water, and 1 part of ammonia water (concentration of 30% by mass), and add 3 parts of orthosilicone in a 40-degree water bath after the temperature is stable. Ethyl acetate, heated in a water bath at 40°C for 4 hours and then cooled to room temperature to obtain a solution of colloidal beads, the particle size of the colloidal beads is 200-300 nanometers.

[0025] Related the...

Embodiment 2

[0026] The preparation of embodiment 2 colloidal bead solution

[0027] In parts by volume, mix 50 parts of absolute ethanol, 10 parts of deionized water, and 1 part of ammonia water (concentration of 30% by mass), and add 3 parts of ethyl orthosilicate in a 40-degree water bath after the temperature is stabilized, 40 parts Heating in a water bath for 4 hours, finally adding 50 parts of water, mixing evenly, then concentrating the system to the volume before adding water to obtain a seed sample.

[0028] In parts by volume, mix 3 parts of seed samples, 50 parts of absolute ethanol, 10 parts of deionized water, and 1 part of ammonia water (concentration of 30% by mass), and add 5 parts of orthosilicon after the temperature is stabilized in a 40-degree water bath Ethyl acetate, heated in a 40 degree water bath for 4 hours and then cooled to room temperature to obtain a solution of colloidal beads, the particle size of the colloidal beads is 400-500 nanometers.

Embodiment 3

[0029] The preparation of embodiment 3 artificial opal (photonic crystal)

[0030] Referring to Fig. 2, the glass plate 2 and the glass plate 3 are polished and cleaned, and a polyethylene terephthalate film frame 4 with several notches 5 is sandwiched between the glass plate 2 and the glass plate 3, and the glass plate 2, The glass plate 3 is clamped, the thickness of the polyethylene terephthalate film frame 4 is 20 microns, and the depth of the notch is about 180 nanometers. When processing the score, the score can be drawn on the film frame 4 manually with a cutter of a certain size.

[0031] The space surrounded by the glass plate 2, the glass plate 3 and the film frame 4 is the assembly pool, through the opening of the glass plate 2 above and the tube 1 glued to the opening, inject the colloidal beads prepared in Example 1 into the assembly pool For the solution, nitrogen gas is passed into the assembly pool through the pipe 1, and ultrasonic oscillation is carried out ...

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Abstract

The invention discloses a convenient preparation method of artificial opal and the equipments thereof, comprising the preparation of colloid spherule solution, injecting colloid spherule solution into an assembling pool, and forming photonic crystal by drying; the assembling pool consists of two glass boards and a macromolecular film frame that is provided with a plurality of scotches and is tightly clamped between the two glass boards. The method to prepare the photonic crystal provided by the invention has the advantages of simple and easy operation, the glass boards being easy to be repeatedly used, no environment pollution, no shrinkage of the macromocular film during the drying process, thereby avoiding causing more defects to the photonic crystal sample.

Description

technical field [0001] The invention relates to a method and equipment for preparing artificial opal. The artificial opal material has some characteristics of three-dimensional photonic crystals, and can control the propagation of light in certain wavebands in the visible light region. Background technique [0002] The concept of a photonic crystal with a periodic ordered structure was first proposed by E. Yablonovitch in 1987. Photonic crystals are regarded as the counterparts of electronic crystals in the optical field. Just as the periodicity of the potential barrier of electronic crystals causes energy band gaps, changes in the refractive index of photonic crystals also cause part of the energy of light to not be able to transmit through the structure. , these prohibited frequency regions are called Photonic Band Gap, related introductions can be found in Song Haiqing and Xu Lei's "Principles and Applications of Photonic Crystals" ("Physical Experiments" 2004 Volume 24, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/141
Inventor 付涛卢邵微李文江
Owner ZHEJIANG UNIV
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