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Diamond film and its preparation method and application

A technology of diamond film and nano-diamond, which is applied in metal material coating technology, instruments, optical components, etc., can solve the problem of low optical transmittance of firm film diamond film, and improve light transmittance and friction resistance , Improve dispersion stability, enhance the effect of adsorption capacity

Active Publication Date: 2022-05-24
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an ultra-thin diamond film and its preparation method and its application, aiming to solve the problem that the existing diamond film preparation method is difficult to form a firm film layer on a glass substrate that is dense and has no holes and is ultra-thin. The problem that the optical transmittance of the prepared diamond film is not high

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  • Diamond film and its preparation method and application
  • Diamond film and its preparation method and application
  • Diamond film and its preparation method and application

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preparation example Construction

[0026] A first aspect of the embodiment of the present invention provides a method for preparing an ultra-thin diamond film, comprising the following steps:

[0027] S01. provide nano-diamond particles and a modified dispersant, configure a mixed system of the nano-diamond particles and the modified dispersant, adjust the pH of the mixed system, and prepare a suspension of modified nano-diamond particles, wherein the The modified dispersant is a dispersant capable of being combined on the surface of the nano-diamond particles and increasing the Zeta potential of the nano-diamond particles;

[0028] S02. place the matrix of the diamond film to be prepared in the modified nano-diamond particle suspension, carry out ultrasonic treatment, and obtain a prefabricated substrate with a single-layer nano-diamond particle adsorbed on the surface;

[0029] S03. Continue to grow nano-diamond particles on the single-layer nano-diamond particles of the prefabricated substrate to prepare an ...

Embodiment 1

[0069] A preparation method of an ultra-thin diamond film, comprising the following steps:

[0070] The glass substrate was first placed in ethanol solution for ultrasonic cleaning for 10 min, then placed in deionized water for ultrasonic cleaning for 5 min, and finally with N 2 Blow dry.

[0071] The behenate amidopropyl dimethyl dihydroxypropyl ammonium chloride is used as the dispersant, deionized water is used as the solvent, and the concentration of the dispersant is 10 -7 mol / L dispersant solution, adjust the pH of the solution to 3. Then, the detonation nano-diamond powder is added to the dispersant solution, and the mass concentration of the nano-diamond is controlled to be 0.005% to obtain a nano-diamond suspension. Ultrasonic vibration was performed on the nano-diamond suspension for 15 minutes, so that the diamond nanoparticles were fully dispersed to obtain a diamond crystal planting solution.

[0072] Take the diamond crystal planting solution, put the glass su...

Embodiment 2

[0081] A preparation method of an ultra-thin diamond film, comprising the following steps:

[0082] The glass substrate was first placed in ethanol solution for ultrasonic cleaning for 12 min, then placed in deionized water for ultrasonic cleaning for 5 min, and finally with N 2 Blow dry.

[0083] 3-Chloro-2-hydroxypropyltrimethylammonium chloride was used as dispersant, deionized water was used as solvent, and the concentration of dispersant was 10 -5 mol / L dispersant solution, adjust the pH of the solution to 3.5. Then, the detonation nano-diamond powder is added to the dispersant solution, and the mass concentration of the nano-diamond is controlled to be 0.01%. Ultrasonic vibration was performed on the nano-diamond suspension for 18 minutes, so that the diamond nanoparticles were fully dispersed to obtain a diamond crystal planting solution.

[0084] Take the diamond crystal planting solution, put the glass matrix into the obtained diamond crystal planting solution and ...

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Abstract

The invention provides a method for preparing an ultra-thin diamond film, comprising the following steps: providing nano-diamond particles and a modified dispersant, configuring a mixing system of the nano-diamond particles and the modified dispersant, and adjusting the mixing system pH to prepare a modified nano-diamond particle suspension, wherein the modified dispersant is a dispersant that can be combined on the surface of the nano-diamond particle and improve the Zeta potential of the nano-diamond particle; the substrate of the diamond film to be prepared is placed in In the modified nano-diamond particle suspension, ultrasonic treatment is carried out to obtain a prefabricated substrate with a single layer of nano-diamond particles adsorbed on the surface; nano-diamond particles continue to grow on the single-layer nano-diamond particles of the prefabricated substrate to prepare ultra-thin diamond particles. film.

Description

technical field [0001] The invention belongs to the technical field of diamond films, and in particular relates to an ultra-thin diamond film and a preparation method and application thereof. Background technique [0002] With the advancement of modern optical technology, the development of optical communication, laser and other technologies has put forward many new requirements for light-transmitting materials, which not only require materials to have high optical transmittance, good optical uniformity and chemical stability, but also Materials with higher mechanical strength and larger dimensions are also required. The transmission range of the optical window material is determined by the structure and properties of the material itself, which is an inherent property of the material. Because glass is not only easy to be made into large size and complex shape, but also has low cost, relatively simple preparation process and easy processing. Therefore, the application of gl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C26/00C23C16/27C23C16/02G02B1/14
CPCC23C26/00C23C16/0272C23C16/271G02B1/14
Inventor 唐永炳王陶黄磊李星星
Owner SHENZHEN INST OF ADVANCED TECH