Method for preparing structural color film based on layer-by-layer assembly technology and product and application thereof

A layer-by-layer assembly and structural color technology, which is applied in the field of structural color film preparation, can solve problems that have not been studied by anyone, and achieve the effects of strong controllability, easy operation, and short time

Inactive Publication Date: 2013-10-23
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But utilize the layer-by-layer assembly technique to prepare the preparation method of

Method used

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  • Method for preparing structural color film based on layer-by-layer assembly technology and product and application thereof
  • Method for preparing structural color film based on layer-by-layer assembly technology and product and application thereof
  • Method for preparing structural color film based on layer-by-layer assembly technology and product and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of a structured color thin film based on layer-by-layer assembly technology, the specific preparation method is as follows:

[0027] 1) Prepare graphene oxide solution with water as solvent, the concentration of graphene oxide is 0.1mg·mL -1 . Slowly add glacial acetic acid dropwise to the mixed solution of tetrabutyl titanate and absolute ethanol, the volume ratio of the three is 1:1:16, stir for 5 hours and let it stand overnight, the concentration of the obtained titanium dioxide solution is 13.0mg· mL -1 . Mix concentrated sulfuric acid with a volume fraction of 95%-98% and a concentrated hydrogen peroxide solution with a volume fraction of 30% according to a volume ratio of 3:1 to prepare Piranha lotion;

[0028] 2) Wash the silicon wafer as the substrate three times with pure water, then soak the silicon wafer in acetone for 1 hour, wash it with pure water three times, then soak it in absolute ethanol for 1 hour, wash it with pure water thr...

Embodiment 2

[0034] 1) Prepare graphene oxide solution with water as solvent, the concentration of graphene oxide is 0.1mg·mL -1 . Slowly add glacial acetic acid dropwise to the mixed solution of tetrabutyl titanate and absolute ethanol, the volume ratio of the three is 1:1:22, stir for 5h and then let it stand overnight, the concentration of the obtained titanium dioxide solution is 9.8mg· mL -1 . Mix concentrated sulfuric acid with a volume fraction of 95%-98% and a concentrated hydrogen peroxide solution with a volume fraction of 30% according to a volume ratio of 3:1 to prepare Piranha lotion;

[0035] 2) Wash the silicon wafer as the substrate three times with pure water, then soak the silicon wafer in acetone for 1 hour, wash it with pure water three times, then soak it in absolute ethanol for 1 hour, wash it with pure water three times, soak it in Piranha lotion 24h, then washed with pure water, finally dried with nitrogen, and placed on a spin coater;

[0036] 3) Add titanium d...

Embodiment 3

[0041] 1) Prepare graphene oxide solution with water as solvent, the concentration of graphene oxide is 0.1mg·mL -1 . Slowly add glacial acetic acid dropwise to the mixed solution of tetrabutyl titanate and absolute ethanol, the volume ratio of the three is 1:1:28, stir for 5 hours and let it stand overnight, the concentration of the obtained titanium dioxide solution is 7.8mg· mL -1 . Mix concentrated sulfuric acid with a volume fraction of 95%-98% and a concentrated hydrogen peroxide solution with a volume fraction of 30% according to a volume ratio of 3:1 to prepare Piranha lotion;

[0042]2) Wash the silicon wafer as the substrate three times with pure water, then soak the silicon wafer in acetone for 1 hour, wash it with pure water three times, then soak it in absolute ethanol for 1 hour, wash it with pure water three times, soak it in Piranha lotion 24h, then washed with pure water, finally dried with nitrogen, and placed on a spin coater;

[0043] 3) Add titanium di...

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Abstract

The invention discloses a method for preparing a structural color film based on a layer-by-layer assembly technology. The invention also discloses a structural color film based on the layer-by-layer assembly technology and application of the structural color film in the field of bio-sensing detection. The preparation method is simple and effective, the operation is easy and convenient, and the required time is short. The prepared structural color film based on the layer-by-layer assembly technology has response on external stimulation, has wide prospects in the field of bio-sensing detection and is high in controllability, and color of the prepared film can be controlled by controlling the rotating speed and solution concentration.

Description

technical field [0001] The invention belongs to the technical field of thin film preparation, and in particular relates to a preparation method of a structural color thin film based on layer-by-layer assembly technology and its product and application. The structural color thin film has broad prospects in the fields of sensing and detection. Background technique [0002] Photonic crystals are a hotspot in the field of materials research today, and they have a wide range of applications in physical optical devices, chemical biosensing, biomedical diagnosis and other fields. As the simplest photonic crystal among photonic crystals, one-dimensional photonic crystal has received extensive attention. In the traditional methods of preparing photonic crystals, there are mainly expensive physical methods such as evaporation, magnetron sputtering, and chemical vapor deposition. In recent years, due to the development of assembly technology and chemical disciplines, spin coating, dipp...

Claims

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Application Information

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IPC IPC(8): C04B41/52
Inventor 葛丽芹姚翀任娇雨赵君
Owner SOUTHEAST UNIV
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