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Device for temperature-controlled bubbling peeling of two-dimensional material grown on sapphire substrate

A sapphire substrate and temperature control technology, which is applied in the direction of measuring devices, analyzing materials, and using radiation for material analysis, etc., can solve the problems affecting the quality and quality stability of transferred finished products, the uncertainty of process conditions, and the inability to solve problems well Problems such as the transfer of two-dimensional materials on the sapphire substrate to achieve the effects of avoiding redundant substances and contamination of samples, good scalability, and easy configuration

Pending Publication Date: 2020-02-07
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these new methods are not completely suitable for sapphire substrates with high temperature resistance and good electrical insulation, and there are uncertainties in the process conditions, which affect the quality and stability of the transferred products.
Therefore, the existing technology cannot well solve the transfer of two-dimensional materials on the sapphire substrate.

Method used

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  • Device for temperature-controlled bubbling peeling of two-dimensional material grown on sapphire substrate
  • Device for temperature-controlled bubbling peeling of two-dimensional material grown on sapphire substrate
  • Device for temperature-controlled bubbling peeling of two-dimensional material grown on sapphire substrate

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Embodiment

[0021] refer to figure 1 It includes a constant temperature water bath 1, an automatic control sample stripper 2 and a detection display device 3. The constant temperature water bath 1 is composed of a constant temperature water bath 11 and a digital display temperature control dial 12; among them, there are three constant temperature water baths 11 to meet the requirements of stripping. According to the different temperatures required, the three constant temperature water baths depend on figure 1 The temperatures shown from left to right are respectively set to 90~120°C, 60~80°C, and room temperature; the digital display temperature control dial 12 is provided with a temperature display 121 and temperature adjustment function keys 122; three constant temperature water baths 11 are connected to each other Place on the shock absorber 13.

[0022] The automatic control sample stripper 2 is composed of a clamping operating arm 21, a clamping cup operating arm 22, a slide rail 23...

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Abstract

The invention discloses a device for temperature-controlled bubbling peeling of a two-dimensional material grown on a sapphire substrate. The device comprises a thermostatic water bath device, an automatic control sample stripper and a detection and display device, wherein an integrated control cabinet of the automatic control sample stripper is used to control movements of a sample clamp manipulation arm and a cup clamp manipulation arm, and the thermostatic water bath device is used to heat aqueous solutions of NH<4>OH and H2O2 to generate air bubbles, and then the two-dimensional material,a polymethyl methacrylate (PMMA) film, is completely peeled from the sapphire substrate according to the invention; the detection and display device according to the invention is used to detect and display a peeling process of the two-dimensional material, the PMMA film, from the sapphire substrate to ensure the integrity of the two-dimensional material, the PMMA film, during the peeling process.The device for the temperature-controlled bubbling peeling of the two-dimensional material grown on the sapphire substrate can realize the function of automatically peeling the two-dimensional material, and has the advantages of simple operation, economy, high efficiency, good expandability, and the like.

Description

technical field [0001] The invention relates to the technical field of preparation and characterization of nanomaterials, in particular to a transfer device for two-dimensional materials grown by vapor deposition on a sapphire substrate, that is, a device for temperature-controlled bubbling to peel off two-dimensional materials grown on a sapphire substrate. Background technique [0002] In the research of two-dimensional materials and their application requirements, sapphire is often used as the substrate of choice for large-scale preparation of two-dimensional materials. But transferring two-dimensional materials grown on chemically inert sapphire substrates is very difficult compared to conventional silicon dioxide substrates. The reason is that the binding force between the sapphire substrate and the two-dimensional material is stronger than the van der Waals force, and the sapphire substrate has strong alkali etching resistance, and the traditional potassium hydroxide s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/2005G01N23/20033G01N23/04G01N1/28G01N1/44
CPCG01N1/28G01N1/2813G01N1/286G01N1/44G01N23/04G01N23/20033G01N23/2005G01N2223/03G01N2223/05G01N2223/102G01N2223/3106
Inventor 吴幸陈新倩徐何军
Owner EAST CHINA NORMAL UNIV
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