Preparation method and application of a shape-evolvable inorganic-organic composite inverse opal photonic crystal

Abstract

The invention discloses a preparation method and use of a morphology-variable inorganic-organic composite inverse opal structure photonic crystal. According to the preparation method, a photonic crystal template which has good sequentiality and is prepared through a vertical sedimentation method is used, gaps of the photonic crystal template are filled with a precursor and the photonic crystal template is removed through an organic solvent so that the morphology-variable inorganic-organic composite inverse opal structure photonic crystals are obtained. Through an electro-wetting process, under the control of voltage, anisotropic infiltration on the surface of the liquid drop structure is realized, morphology change in the inverse opal structure photonic crystal is finished and color change in the infiltration place is realized. The preparation method realizes fast formation of photonic crystal patterns, provides a novel method for photonic crystal patterning preparation and widens latent application prospects in the fields of optical devices, displays and micro fluidic equipment.

Description

technical field

[0001] The invention relates to the field of preparation and application of photonic crystals. More specifically, it relates to a preparation method and application of an inorganic-organic composite inverse opal photonic crystal whose morphology can evolve. Background technique

[0002] Inorganic metal material photonic crystal inverse opal structure has been extensively studied by researchers based on its unique periodic structure characteristics and combined with the advantages of the construction material itself. Pure metal material photonic crystals such as: Pb, Ni, W, Au, The prepared photonic crystals are mainly used in superconducting properties, highly reflective infrared, thermal photoelectric generators (K.A.Arpin, Chem.Mater.2011, 23, 4783-4788), surface-enhanced Raman scattering, etc. Metal oxides such as: ZnO, NiO, Fe 3 o 4 , the prepared photonic crystals are mainly used in superhydrophobic materials, electrode materials, catalytic materials,...

Examples

Embodiment 1

[0051] 1) Disperse monodisperse styrene-methyl methacrylate-acrylic acid polymer microspheres with a particle size of 265nm in water to form a 10wt% emulsion, control the temperature at 20°C, and use a vertical deposition method at a relative humidity of 10% Let the polymer microspheres self-assemble into a film on the substrate, the assembly time is 48h, as a photonic crystal template;

[0052] 2) Use plasma to carry out hydrophilic treatment on the photonic crystal template for 1 min;

[0053] 3) Dissolve lead nitrate in deionized water to prepare a concentration of 200mmol / L. After the dissolution is complete, add an appropriate amount of the solution dropwise on the surface-treated photonic crystal, and place it at room temperature of 20°C until the solvent evaporates and the metal salt crystallizes.

[0054] 4) Put the filled photonic crystal template into toluene to remove the template, while removing the template, the polymer microspheres interact with the metal salt to...

Embodiment 2

[0056] 1) Disperse monodisperse styrene-methyl methacrylate-acrylic acid polymer microspheres with a particle size of 180nm in water to form a 30wt% emulsion, control the temperature at 60°C, and the relative humidity at 60%, using a vertical deposition method Let the polymer microspheres self-assemble into a film on the substrate, the assembly time is 24h, as a photonic crystal template;

[0057] 2) Use plasma to treat the photonic crystal template for hydrophilization for 10 minutes;

[0058] 3) Metal salt CuSO 4 or ZnSO 4 Dissolve in deionized water to prepare a concentration of 80mmol / L. After the dissolution is complete, add an appropriate amount of the solution dropwise on the surface-treated photonic crystal, and place it at room temperature of 20°C until the solvent evaporates and the metal salt crystallizes.

[0059] 4) Put the filled photonic crystal template into tetrahydrofuran to remove the template, and at the same time, the polymer microspheres interact with t...

Embodiment 3

[0061] 1) Disperse monodisperse styrene-methyl methacrylate-acrylic acid polymer microspheres with a particle size of 265nm in water to form a 20wt% emulsion, control the temperature at 60°C, and the relative humidity at 80%, using a vertical deposition method Let the polymer microspheres self-assemble into a film on the substrate, the assembly time is 26h, as a photonic crystal template;

[0062] 2) Use plasma to carry out hydrophilic treatment on the photonic crystal template for 2 minutes;

[0063] 3) Metal salt Pb(NO 3 ) 2 Dissolve in deionized water to prepare a concentration of 250mmol / L. After the dissolution is complete, add an appropriate amount of the solution dropwise on the surface-treated photonic crystal, and place it at room temperature of 20°C until the solvent evaporates and the metal salt crystallizes.

[0064] 4) Put the filled photonic crystal template into dioxane to remove the template, and at the same time the template is removed, the polymer microsphe...

technical field

[0001] The invention relates to the field of preparation and application of photonic crystals. More specifically, it relates to a preparation method and application of an inorganic-organic composite inverse opal photonic crystal whose morphology can evolve. Background technique

[0002] Inorganic metal material photonic crystal inverse opal structure has been extensively studied by researchers based on its unique periodic structure characteristics and combined with the advantages of the construction material itself. Pure metal material photonic crystals such as: Pb, Ni, W, Au, The prepared photonic crystals are mainly used in superconducting properties, highly reflective infrared, thermal photoelectric generators (K.A.Arpin, Chem.Mater.2011, 23, 4783-4788), surface-enhanced Raman scattering, etc. Metal oxides such as: ZnO, NiO, Fe 3 o 4 , the prepared photonic crystals are mainly used in superhydrophobic materials, electrode materials, catalytic materials,...

Examples

Embodiment 1

[0051] 1) Disperse monodisperse styrene-methyl methacrylate-acrylic acid polymer microspheres with a particle size of 265nm in water to form a 10wt% emulsion, control the temperature at 20°C, and use a vertical deposition method at a relative humidity of 10% Let the polymer microspheres self-assemble into a film on the substrate, the assembly time is 48h, as a photonic crystal template;

[0052] 2) Use plasma to carry out hydrophilic treatment on the photonic crystal template for 1 min;

[0053] 3) Dissolve lead nitrate in deionized water to prepare a concentration of 200mmol / L. After the dissolution is complete, add an appropriate amount of the solution dropwise on the surface-treated photonic crystal, and place it at room temperature of 20°C until the solvent evaporates and the metal salt crystallizes.

[0054] 4) Put the filled photonic crystal template into toluene to remove the template, while removing the template, the polymer microspheres interact with the metal salt to...

Embodiment 2

[0056] 1) Disperse monodisperse styrene-methyl methacrylate-acrylic acid polymer microspheres with a particle size of 180nm in water to form a 30wt% emulsion, control the temperature at 60°C, and the relative humidity at 60%, using a vertical deposition method Let the polymer microspheres self-assemble into a film on the substrate, the assembly time is 24h, as a photonic crystal template;

[0057] 2) Use plasma to treat the photonic crystal template for hydrophilization for 10 minutes;

[0058] 3) Metal salt CuSO 4 or ZnSO 4 Dissolve in deionized water to prepare a concentration of 80mmol / L. After the dissolution is complete, add an appropriate amount of the solution dropwise on the surface-treated photonic crystal, and place it at room temperature of 20°C until the solvent evaporates and the metal salt crystallizes.

[0059] 4) Put the filled photonic crystal template into tetrahydrofuran to remove the template, and at the same time, the polymer microspheres interact with t...

Embodiment 3

[0061] 1) Disperse monodisperse styrene-methyl methacrylate-acrylic acid polymer microspheres with a particle size of 265nm in water to form a 20wt% emulsion, control the temperature at 60°C, and the relative humidity at 80%, using a vertical deposition method Let the polymer microspheres self-assemble into a film on the substrate, the assembly time is 26h, as a photonic crystal template;

[0062] 2) Use plasma to carry out hydrophilic treatment on the photonic crystal template for 2 minutes;

[0063] 3) Metal salt Pb(NO 3 ) 2 Dissolve in deionized water to prepare a concentration of 250mmol / L. After the dissolution is complete, add an appropriate amount of the solution dropwise on the surface-treated photonic crystal, and place it at room temperature of 20°C until the solvent evaporates and the metal salt crystallizes.

[0064] 4) Put the filled photonic crystal template into dioxane to remove the template, and at the same time the template is removed, the polymer microsphe...

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