Preparation method for periodic metal material of bicontinuous internal communicating structure and application of periodic metal material

A metal material, interconnected technology, applied in metal material coating process, material analysis by optical means, material analysis, etc., can solve the problem of limiting the two-dimensional distribution of plasma hot spots, difficult to accurately control the reaction time, chemical plating reaction rate Fast and other problems, to achieve the effect of high plasma response efficiency and stability, improved space utilization, and high repeatability

Active Publication Date: 2016-08-03
SHANGHAI JIAO TONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

In the inventor's previous research, the article "Preparation of Metal Functional Materials with Micro-Nano Structures Imitating Butterfly Wings and Research on Their Photoresponse Properties" introduced in detail that our group used butterfly wings as biological templates in recent years to prepare them by electroless plating. Research on metal materials with micro-nano structures and their optical functions, but the selected dendritic templates still limit the two-dimensional distribution of plasma hotspots; and in this preparation method, the reaction rate of electroless plating is too fast, and it is difficult to accurately control the reaction time To control the distribution of the nanoband gap
In recent years, the bicontinuous interconnected gyroid structure has attracted extensive attention because of its three-dimensional distribution of helical structure and high space utilization. High plasmon response efficiency, but the presence of hard templates makes the distribution of plasmonic hotspots still limited to the two-dimensional plane
Using butterfly wings with bicontinuous interconnected gyroid structures as biological soft templates, choosing diethanolamine with relatively mild reducing properties as the reducing agent for electroless plating reaction, and controlling the time of electroless plating to obtain high-density cycles with three-dimensional distribution of plasma hotspots Sexual metal materials have not been reported

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  • Preparation method for periodic metal material of bicontinuous internal communicating structure and application of periodic metal material
  • Preparation method for periodic metal material of bicontinuous internal communicating structure and application of periodic metal material
  • Preparation method for periodic metal material of bicontinuous internal communicating structure and application of periodic metal material

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Embodiment 1

[0055] The preparation method of the periodic Au nanomaterial system of the gyroid structure of the present embodiment comprises the following steps:

[0056] (1) Select the butterfly wing of the gray butterfly as a biological template with a bicontinuous interconnected gyroid structure. The gyroid model is as follows figure 1 As shown, the selected biological template structure is characterized as figure 2 and image 3 shown;

[0057] (2) Perform the following cleaning and pre-activation treatment on the selected butterfly wings: First, soak the wings in acetone solution for 30 minutes, and then wash them with absolute alcohol. This operation is used to remove the pigment adsorbed on the surface of the wings and organic matter; then the butterfly wings were impregnated in 15vol% HNO 3 solution for 1 hour, take it out and wash it; put the butterfly wings into 20% ethylenediamine absolute ethanol solution and soak for 4 hours, then take it out and wash it several times with...

Embodiment 2

[0065] The preparation method of the periodic Ag nanomaterial system of the gyroid structure of the present embodiment comprises the following steps:

[0066] (1) Select the butterfly wing of the gray butterfly as a biological template with a bicontinuous interconnected gyroid structure. The gyroid model is as follows figure 1 As shown, the selected biological template structure is characterized as figure 2 and image 3 shown;

[0067] (2) Perform the following cleaning and pre-activation treatment on the selected butterfly wings: First, soak the wings in acetone solution for 40 minutes, and then wash them with absolute alcohol. This operation is used to remove the pigment adsorbed on the surface of the wings and organic matter; then the butterfly wings were impregnated in 10vol% HNO 3 After 2 hours in the solution, take it out and wash it; then put the butterfly wings into 40% ethylenediamine absolute ethanol solution for 2 hours, then take them out and wash them several ...

Embodiment 3

[0072] The preparation method of the periodic Cu nanomaterial system of the gyroid structure of the present embodiment comprises the following steps:

[0073] (1) Select the butterfly wing of the gray butterfly as a biological template with a bicontinuous interconnected gyroid structure. The gyroid model is as follows figure 1 As shown, the selected biological template structure is characterized as figure 2 and image 3 shown;

[0074] (2) Perform the following cleaning and pre-activation treatment on the selected butterfly wings: first, soak the wings in acetone solution for 35 minutes, and then wash them with absolute alcohol. This operation is used to remove the pigment adsorbed on the surface of the wings and organic matter; then the butterfly wings were impregnated in 5vol% HNO 3 After 1.5 hours in the solution, take it out and wash it; put the butterfly wings into 10% ethylenediamine absolute ethanol solution and soak them for 5 hours, then take them out and wash them ...

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Abstract

The invention discloses a preparation method for a periodic metal material of a bicontinuous internal communicating structure and application of the periodic metal material. The preparation method comprises the steps that a biological template of the bicontinuous internal communicating structure is pretreated; nano-sized seed crystals are grown on the pretreated biological template; and the biological template with deposited nano-sized seed crystals is dipped in a precious metal chemical plating reducing solution for reaction. The periodic metal material prepared through the method has high-density three-dimensional distributed nano-sized band gaps and the high-scattering cross section, so that the periodic metal material has the ultrahigh plasma response efficiency. The detection limits of a surface enhanced Raman scattering (SERS) substrate manufactured through the periodic metal material to Rhodamine molecules and crystal violet molecules reach 10<-13> M and 10<-12> M correspondingly, enhancement factors of the substrate is up to 10<9>, and the high repeatability, homogeneity and stability are achieved.

Description

technical field [0001] The present invention relates to a method for preparing a periodic metal material with a double-continuous interconnection structure and its application, in particular to a method for preparing a periodic metal material with a dual-continuous interconnection structure by using butterfly wings as a biological soft template, and the method Systematic research on the plasma response efficiency of periodic metallic materials and its application in the field of Raman detection. Background technique [0002] Periodic metal materials can effectively generate surface plasmon responses, and have very good application prospects in the fields of plasmon sensors, light-to-heat conversion, and energy storage. Therefore, the preparation of periodic metal materials with submicron-level fine structures has always been a The focus of the research. At present, the traditional top-down preparation methods are relatively mature, such as nanoimprinting, electron beam etch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/44C23C18/30C23C18/20G01N21/65
CPCC23C18/2086C23C18/44G01N21/658
Inventor 张旺吴丽萍蔡年进孙鹏苏慧兰张荻
Owner SHANGHAI JIAO TONG UNIV
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