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Large-area metal nano-structural substrate for surface-enhanced Raman and preparation method thereof

A surface-enhanced Raman and large-area metal technology, which is applied in Raman scattering, metal layered products, chemical instruments and methods, etc., can solve the problems of inability to realize industrialized large-scale production, slow preparation rate, complicated process, etc., and achieve the goal of using The effect of wide range, uniform shape and simple preparation process

Inactive Publication Date: 2010-06-02
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, nanostructure arrays of silver (Ag) and gold (Au) and their colloidal particle solutions are widely used. Compared with colloidal solutions, nanostructure arrays have the characteristics of strong stability, repeatability, and simple operation. Therefore, It has been widely used in Raman detection. At present, the methods for producing and preparing metal structure substrates mainly include nanosphere lithography, ion beam focused etching, mask lithography, nanoimprinting and electron beam etching, etc., but these method, the cost is high, the process is complicated, and the preparation rate is slow, and industrialized mass production cannot be realized

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  • Large-area metal nano-structural substrate for surface-enhanced Raman and preparation method thereof
  • Large-area metal nano-structural substrate for surface-enhanced Raman and preparation method thereof
  • Large-area metal nano-structural substrate for surface-enhanced Raman and preparation method thereof

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Embodiment 1

[0029] A large-area metal nanostructured substrate for surface-enhanced Raman is composed of a nanoscale structure substrate composed of an aluminum-titanium-carbon alloy material and gold with a thickness of 10 nanometers deposited on the aluminum-titanium-carbon alloy nanomaterial substrate. The aluminum-titanium-carbon alloy is composed of 64at% of aluminum oxide and 36at% of titanium carbide, and the particle size of the aluminum-titanium-carbon alloy is 300 nanometers.

Embodiment 2

[0031] A large-area metal nanostructured substrate for surface-enhanced Raman is composed of a nanoscale structure substrate composed of aluminum-titanium-carbon alloy material and gold with a thickness of 100 nanometers deposited on the aluminum-titanium-carbon alloy nanomaterial substrate. The aluminum-titanium-carbon alloy is composed of 64at% of aluminum oxide and 36at% of titanium carbide, and the particle size of the aluminum-titanium-carbon alloy is 280 nanometers.

Embodiment 3

[0033] A large-area metal nanostructured substrate for surface-enhanced Raman is composed of a nanoscale structure substrate composed of an aluminum-titanium-carbon alloy material and gold with a thickness of 30 nanometers deposited on the aluminum-titanium-carbon alloy nanomaterial substrate. The aluminum-titanium-carbon alloy is composed of 64at% of aluminum oxide and 36at% of titanium carbide, and the particle size of the aluminum-titanium-carbon alloy is 300 nanometers.

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Abstract

The invention discloses a large-area metal nano-structural substrate for surface-enhanced Raman and a preparation method thereof. The large-area metal nano-structural substrate for the surface-enhanced Raman consists of a nano-scale structural substrate consisting of different phase alloy materials and a nano-thickness metal material deposited on the substrate. The metal nano-structural substrateprovided by the invention has good Raman enhancing effect, and can be widely applied in the fields of physics, chemistry, materials science, biomedicine and the like. The preparation method for the large-area metal nano-structural substrate for the surface-enhanced Raman uses an alloy material consisting of different phases as a primary template, adopts a selective plasma etching method to etch the nano-structural substrate, and then adopts an ion beam sputtering method to deposit the nano-thickness metal material on the nano-structural substrate so as to form the surface-enhanced Raman substrate based on different phase metal materials; and the preparation method has mature industrial technology and low production cost, and can implement industrialized mass production.

Description

technical field [0001] The invention designs a nanostructure material, and specifically designs a large-area metal nanostructure substrate for surface-enhanced Raman and a preparation method thereof. Background technique [0002] Surface-enhanced Raman spectroscopy (SERS) has a wide range of applications in the fields of physics, chemistry, materials science, and biomedicine. The principle of its enhancement is that the electric field on the metal surface is enhanced based on plasmon resonance. Compared with other measurement methods, Raman detection has molecular recognition and fingerprint properties, and is insensitive to aqueous solutions, which is especially useful for the detection of biomolecules. But its disadvantage is that the signal is very weak, and the use of surface-enhanced Raman technology can make a new breakthrough in solving this problem. [0003] For surface-enhanced Raman detection, the most important thing is to develop effective enhanced substrates ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01C23C14/46G01N21/65
Inventor 刘凡新王振林
Owner NANJING UNIV
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