Metal-free phthalocyanine and oxidized graphene composite nonlinear optical thin-film material and preparation method thereof

A graphene composite and nonlinear optics technology, applied in nonlinear optics, optics, instruments, etc., can solve the problems of poor performance of third-order nonlinear optics, achieve good third-order nonlinear optics performance, simple preparation method, excellent performance stable effect

Inactive Publication Date: 2015-09-09
HEILONGJIANG UNIV
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a metal-free phthalocyanine-graphene oxide composite nonlinear optical film material and its preparation method in order to solve the problem of poor third-order nonlinear optical performance of existing nonlinear optical film materials

Method used

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  • Metal-free phthalocyanine and oxidized graphene composite nonlinear optical thin-film material and preparation method thereof
  • Metal-free phthalocyanine and oxidized graphene composite nonlinear optical thin-film material and preparation method thereof
  • Metal-free phthalocyanine and oxidized graphene composite nonlinear optical thin-film material and preparation method thereof

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specific Embodiment approach 1

[0017] Specific Embodiment 1: In this embodiment, the metal-free phthalocyanine-graphene oxide composite nonlinear optical film material is formed by electrostatic self-assembly of an aqueous solution of phthalocyanine compound and graphene oxide, wherein the phthalocyanine compound is Charged tetrakis-β-(4-sulfophenoxy)phthalocyanine (β-PhSPcH 2 ), its structural formula is:

specific Embodiment approach 2

[0018] Embodiment 2: This embodiment is different from Embodiment 1 in that the graphene oxide is prepared by the Hummers method.

specific Embodiment approach 3

[0019] Specific embodiment three: the preparation method of metal-free phthalocyanine-graphene oxide composite nonlinear optical film material in this embodiment is implemented according to the following steps:

[0020] 1. Soak the pretreated substrate in a PDDA (polydiallyldimethylammonium chloride) solution with a mass concentration of 10% for 4 to 6 minutes, take it out, wash it with distilled water and dry it, and then immerse it in Mass concentration is 10% PSS (sodium polystyrene sulfonate) solution for 4~6min, after taking it out, wash and dry with distilled water, complete the PDDA-PSS immersion process once, repeat the PDDA-PSS immersion process three times, obtain the Charged substrate;

[0021] 2. Put the negatively charged substrate obtained in step 1 into the PDDA solution with a mass concentration of 10% and soak for 4 to 6 minutes, take it out, wash it with distilled water and dry it, and then immerse it in β-PhSPcH 2 (Tetra-β-(4-sulfonic acid phenoxy) phthaloc...

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Abstract

The invention discloses a metal-free phthalocyanine and oxidized graphene composite nonlinear optical thin-film material and a preparation method thereof, belongs to the field of composite nonlinear optical materials, and aims to solve the problem of poor third-order non-linear optical property of an existing nonlinear optical thin-film material. The nonlinear optical thin-film material is made of phthalocyanine derivative and oxidized graphene water solution by an electrostatic self-assembly method, wherein the phthalocyanine derivative is charged quadric-beta-(4-sulfonic acid phenoxy) phthalocyanine. The preparation method includes the steps: firstly, preparing a substrate with negative charge; secondly, sequentially placing the substrate into PDDA solution, beta-PhSPcH2 solution, the PDDA solution and GO water solution; thirdly, repeating multiple assembly processes. The composite nonlinear optical thin-film material preparation method is simple and stable in performance, has fine third-order non-linear optical property and shows obvious reverse saturation absorption property.

Description

technical field [0001] The invention belongs to the field of composite nonlinear optical materials, and in particular relates to a metal-free phthalocyanine-graphene oxide composite nonlinear optical film material and a preparation method thereof. Background technique [0002] The development of photonics and optoelectronic devices is inseparable from the discovery of new nonlinear optical materials. Graphene with an extremely large π-conjugated system is considered to be a good ultrafast laser saturable absorber due to its ultrafast carrier relaxation time and wide nonlinear optical response. However, its high insolubility limits its application, and its oxidized derivative graphene oxide greatly improves the solubility due to the introduction of oxygen-containing functional groups, but it also breaks the original structure of graphene. As a kind of organic macromolecules with 18π electrons, phthalocyanines are widely used as nonlinear optical materials because of their hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/355G02F1/361
CPCG02F1/355G02F1/3613
Inventor 宋微娜贺春英陈博文陈志敏吴谊群
Owner HEILONGJIANG UNIV
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