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A graphene 合 composite material and its preparation method

A composite material and graphene technology, applied in the field of materials, can solve problems such as low nonlinear attenuation factor, inability to meet practical needs, and lack of research on the properties of ordered materials

Active Publication Date: 2021-04-06
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the main problem of phthalocyanine materials is: under the condition of high linear transmittance, the nonlinear attenuation factor is still low, which cannot meet the practical needs.
However, the composite material system is generally a simple composite, and it has not been studied whether the ordered arrangement of the two materials under the microstructure will further improve the performance of the material.

Method used

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  • A graphene 合 composite material and its preparation method
  • A graphene 合 composite material and its preparation method
  • A graphene 合 composite material and its preparation method

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preparation example Construction

[0028] The invention provides a kind of preparation method of graphene phthalocyanine composite material, comprises the following steps:

[0029] Composite the modified graphene material with regularly arranged hole structure and the modified phthalocyanine material to obtain the graphene phthalocyanine composite material.

[0030] figure 1 A schematic diagram of the preparation process of the graphene phthalocyanine composite material provided by the present invention.

[0031] In the present invention, the modified graphene material with a regularly arranged pore structure is preferably prepared according to the following method:

[0032] A) providing a template material with a regularly arranged hole structure;

[0033] B) composite graphene material on the template material;

[0034] C) preparing a regularly arranged pore structure on the graphene material by means of chemical etching or laser treatment;

[0035] D) remove the template to obtain a graphene material wit...

Embodiment 1

[0064] The preparation process of graphene material with regularly arranged pore structure is as follows:

[0065] (1) Directly select the porous alumina template material with a pore size of 100 nm.

[0066] (2) After diluting the graphene with ethanol according to the ratio of 1g:100mL, dropwise add the graphene material on the porous alumina template material and spin-coat the graphene material, the spin-coating speed is 1000 rpm, and the spin-coating time is 20s;

[0067] (3) A 0.1W pulsed laser treatment was used for 10s to prepare a regularly arranged pore structure on the graphene.

[0068] (4) Use 0.5mol / L oxalic acid solution to process for 5min to remove the porous alumina template to obtain a graphene material with a regularly arranged pore structure;

[0069] (5) Treat the graphene material with a regularly arranged pore structure with a 0.01 mol / L sulfuric acid solution for carboxylation.

[0070] (6) Directly prepare the phthalocyanine molecules with amino subs...

Embodiment 2

[0075] The preparation process of graphene material with regularly arranged pore structure is as follows:

[0076] (1) Directly select a porous silica template material with a pore size of 50nm, and the pore arrangement is hexagonal honeycomb

[0077] (2) After diluting the graphene with ethanol according to the ratio of 1g:100mL, dropwise add the graphene material on the porous alumina template material and spin-coat the graphene material, the spin-coating speed is 2000 rpm, and the spin-coating time is 30s;

[0078] (3) A 0.1W pulsed laser treatment was used for 20s to prepare a regularly arranged pore structure on the graphene.

[0079] (4) Use 0.5mol / L hydrofluoric acid solution for 5min to remove the porous silica template, and obtain a graphene material with a regularly arranged pore structure;

[0080] (5) the graphene material with the pore structure of regular arrangement is processed with the sulfuric acid solution of 0.01mol / L, carries out carboxylation;

[0081] ...

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Abstract

The invention provides a graphene phthalocyanine composite material and a preparation method thereof. The method comprises: compounding a modified graphene material with a regularly arranged pore structure and a modified phthalocyanine material to obtain a graphene phthalocyanine composite material. The modified phthalocyanine materials in the composite material prepared by the above method are also arranged in an orderly manner, such as arranged in a regular matrix or hexagonal grid structure, so that the composite material has excellent optical limiting performance. Composite materials at an incident energy of 1.5J / cm 2 Obvious optical clipping phenomenon occurs when the output amplitude is 0.8J / cm 2 , the nonlinear attenuation rate is about 7 times; or when the incident energy is 3.4J / cm 2 Obvious optical clipping phenomenon occurs when the output amplitude is 1.4J / cm 2 , the nonlinear attenuation rate is about 4 times; or the incident energy is 2J / cm 2 Obvious optical clipping phenomenon occurs when the output amplitude is 1.1J / cm 2 , the nonlinear attenuation rate is about 5 times.

Description

technical field [0001] The invention belongs to the field of material technology, in particular to a graphene phthalocyanine composite material and a preparation method thereof. Background technique [0002] Laser protection technology can be used to protect human eyes and photodetectors from strong laser damage, which is of great significance in industrial and military applications. According to the characteristics of high-power lasers, non-linear laser protection materials have the advantages of high transmittance for weak light and low transmittance for strong light (that is, optical limiting characteristics), and have the greatest development potential. Among them, phthalocyanine materials have good transparency, wide protection spectrum, and response time up to nanoseconds, which have attracted widespread attention. For a protected optical system, increasing the linear transmittance of the protective material is beneficial to improving the imaging quality; increasing t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/355C01B32/194C07D487/22
CPCC07D487/22C01B32/194G02F1/355
Inventor 王春锐陈星邵俊峰陈飞
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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