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Preparation method of panchromatic structural color or color variation pattern array

A color pattern and structural color technology, applied in the field of full-color structural color or color-variable color pattern array, can solve the problems of large-area preparation and practical application of unfavorable samples, high cost, low efficiency, etc.

Inactive Publication Date: 2013-06-12
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These techniques are expensive on the one hand, and inefficient on the other hand, which is not conducive to the large-scale preparation and practical application of samples.

Method used

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  • Preparation method of panchromatic structural color or color variation pattern array
  • Preparation method of panchromatic structural color or color variation pattern array
  • Preparation method of panchromatic structural color or color variation pattern array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Cleaning and surface hydrophilization of glass slide substrates:

[0047]The glass slides were ultrasonically cleaned with acetone for 10 minutes, anhydrous ethanol for 10 minutes, dried, and acidic treatment solution (a mixed solution of concentrated sulfuric acid with a mass fraction of 98% and hydrogen peroxide with a mass fraction of 30%, the volume ratio of the two solutions is 7:3) boiled for 20 minutes, rinsed with deionized water, and then dried under nitrogen or air atmosphere to obtain a glass slide substrate with surface cleaning and hydrophilization treatment;

[0048] 2. The preparation method of polystyrene microspheres:

[0049] Under nitrogen protection, with 100mL of absolute ethanol and 40mL of deionized water as the dispersion medium, 10.5mL of styrene, 0.2222g of potassium persulfate, and 0.2445g of sodium dodecylsulfonate were added to the And in the reactor of the reflux condenser, the mechanical stirring speed is at 300r / min. Dispersion polym...

Embodiment 2

[0057] 1. See Example 1 for the preparation method of polystyrene microspheres and the preparation method of polystyrene monolayer microspheres.

[0058] 2. See Example 1 for the preparation method of the silver nanohole array sample whose apparent color is green.

[0059] 3. The preparation of the silica layer-coated silver nanohole array sample whose apparent color is blue:

[0060] The silica layer on the surface of the silver nanopore array was prepared by spin-coating silica sol on the surface of the sample, and then gelling in an oven at 135° C. for 10 minutes. The preparation method of silica sol is briefly described as follows. First, 5mLSi(OC 2 h 5 ) 4 Dissolve in 5mL ethanol to prepare solution A; add 81μL concentrated hydrochloric acid to 1.935mL water to prepare solution B. Then, under stirring at 70°C, solution A was slowly added dropwise into solution B within 20 minutes and reacted for 2 hours. Finally, the system was cooled to room temperature and the rea...

Embodiment 3

[0064] 1. See Example 1 for the preparation method of polystyrene microspheres and the preparation method of polystyrene monolayer microspheres.

[0065] 2. See Example 1 for the preparation method of the silver nanohole array sample whose apparent color is green.

[0066] 3. Preparation of silver nanopore surface patterned photoresist plate:

[0067] We spin-coated at a rate of 4000rpm / min for 1min to spread the positive photoresist (BP212-37, Beijing Microelectronics Co., Ltd.) The photolithography technology was used to expose and develop with 0.5% sodium hydroxide aqueous solution as the developing solution. After development, the photoresist in the exposed areas is washed away, exposing the substrate, while the unexposed areas are still covered by photoresist. The pattern of the photoresist plate is determined by the commercial photoresist plate. By changing the pattern of the photoresist plate, we can obtain a photoresist plate with any pattern with a feature size abov...

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Abstract

The invention discloses a preparation method of a panchromatic structural color or color variation pattern array, belongs to the technical field of materials, and in particular relates to a method for preparing a panchromatic structural color or color variation pattern array by regulating the environment dielectric constants of an upper interface and a lower interface of a noble metal nanopore array. The preparation method comprises the following steps of: cleaning and surface hydrophilization treatment, the preparation of polystyrene single layer colloidal crystals, the construction for covering the noble metal nanopore array by a silicon oxide layer, the construction of a suspension noble metal nanopore array, selective regulation and control of the environment dielectric constant around the noble metal nanopore array and the like. The obtained noble metal nanopore array has a transmission peak adjustable within a visible light wave band (350nm-800nm), so that different single-color patterns or color patterns are shown, the apparent color of a single color sample can be changed along with the change of the external environment dielectric constant; and color change, disappear and reproduction of the array patterns can be realized for the color pattern sample along with the change of the external environment dielectric constant.

Description

technical field [0001] The invention belongs to the technical field of materials, and specifically relates to a method for preparing a full-color structural color or color-changing color pattern array by adjusting the environmental permittivity of the upper and lower interfaces of the noble metal nanohole array. Background technique [0002] Structural colors based on nano-microstructures of noble metals have the advantages of stable color and high integration, and have become an independent and important branch in the field of materials science. At the same time, since this structural color comes from the unique surface plasmon resonance properties of precious metals, the structural color will change significantly with the change of the dielectric constant of the external environment, so it has a wide range of applications in the fields of filtering, display, photonic paper, and security and anti-counterfeiting. application. [0003] Among all noble metal nano-micron mater...

Claims

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Application Information

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IPC IPC(8): B81C1/00
Inventor 张俊虎张学民叶顺盛杨柏
Owner JILIN UNIV
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