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A substrate with magnetic nanowires being arranged on the surface and a preparation method of the substrate

A magnetic nanometer and nanowire technology, applied in the fields of nanotechnology, nanotechnology, and nanotechnology for materials and surface science, can solve problems such as expensive raw materials, disorderly distribution of nanowires, and inability to form ordered arrays. Simple to use effects

Inactive Publication Date: 2014-12-03
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the raw materials of the sol-gel method are expensive, and the sintering properties of the gel particles are poor; the nanowires prepared by the hydrothermal and chemical precipitation methods are dispersed in the solution and cannot form an ordered array; the equipment used in the template method is simple and easy to operate. It can be carried out at normal temperature and pressure, the production cost is low, and it is easy to realize industrial production, especially using the anodic aluminum oxide (Anodic Aluminum Oxide, AAO) template method. The holes are arranged in an orderly column, and the synthesized materials are easy to collect. Although the template method can realize the arrangement of nanowires perpendicular to the membrane surface, the ordered nanowires cannot exist independently. After the template is washed away, The prepared ordered nanowires will become disordered, which limits the further application of template method to prepare nanomaterials
[0003] Moreover, the above-mentioned method cannot realize the arrangement of nanowires in a large area, nor can it realize the compound arrangement of nanowires in multiple ways and at multiple levels, and is not suitable for the development needs of large-scale and integrated production of semiconductor devices.

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  • A substrate with magnetic nanowires being arranged on the surface and a preparation method of the substrate
  • A substrate with magnetic nanowires being arranged on the surface and a preparation method of the substrate
  • A substrate with magnetic nanowires being arranged on the surface and a preparation method of the substrate

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Embodiment 1

[0058] This embodiment provides a substrate with nanowires arranged on the surface and a preparation method thereof. 2 layer), the preparation method comprises the steps:

[0059] Directly growing Ni nanowires in anodized aluminum template by electrochemical deposition: before electroplating, a gold film is first plated on the back of the template as an electrode;

[0060] To the reaction solution (containing NiSO with a concentration of 0.4mol / L) 4 ·6H 2 O and 0.6mol / L H 3 BO 3 ), add dilute sulfuric acid solution, pH value is adjusted to 3;

[0061] Place the template in the reaction solution at 6 mA / cm 2 The constant current for 2min reaction, then keep 3mA / cm 2 The reaction was carried out at constant current for 3h to obtain nanowires with a length of 50μm;

[0062] Put the template with the nanowire material attached to it into the prepared aqua regia, soak it for 5-10min, and dissolve the gold film on the back of the template;

[0063] The template for dissolvin...

Embodiment 2

[0067] This embodiment provides a substrate with nanowires arranged on the surface and a preparation method thereof. 2 layer), the preparation method comprises the steps:

[0068] Directly growing Ni nanowires in anodized aluminum template by electrochemical deposition: before electroplating, a gold film is first plated on the back of the template as an electrode;

[0069] To the reaction solution (containing NiSO with a concentration of 0.4mol / L) 4 ·6H 2 O and 0.6mol / L H 3 BO 3 ), add dilute sulfuric acid solution, pH value is adjusted to 3;

[0070] Place the template in the reaction solution at 6 mA / cm 2 The constant current was used for 2min reaction, keeping 3mA / cm 2 The reaction was carried out at constant current for 3h to obtain nanowires with a length of 50μm;

[0071] Put the template with the nanowire material attached to it into the prepared aqua regia, soak it for 5-10min, and dissolve the gold film on the back of the template;

[0072] The template for di...

Embodiment 3

[0077] This embodiment provides a substrate with nanowires arranged on the surface and a preparation method thereof. 2 layer), the preparation method comprises the steps:

[0078] Directly growing Ni nanowires in anodized aluminum template by electrochemical deposition: before electroplating, a gold film is first plated on the back of the template as an electrode;

[0079] To the reaction solution (containing NiSO with a concentration of 0.4mol / L) 4 ·6H 2 O and H at a concentration of 0.6 mol / L 3 BO 3 ), add dilute sulfuric acid solution, pH value is adjusted to 3;

[0080] Place the template in the reaction solution at 3 mA / cm 2 The constant current was used for 1h reaction, and Ni nanowires with a length of 5μm were obtained;

[0081] Change the electrolyte to Cu ion solution (CuSO 4 Dilute sulfuric acid solution), adjust the pH value to 3 with dilute sulfuric acid, obtain Cu nanowires by electrochemical deposition, replace the electrolyte again with the electrolyte f...

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Abstract

The invention relates to a substrate with magnetic nanowires being arranged on the surface and a preparation method of the substrate. The surface of the substrate is provided with the orderly-arranged magnetic nanowires. The preparation method of the substrate comprises the steps of dispersing the magnetic nanowires into a dispersing solution, and then, using a magnetic field to enable the magnetic nanowires to be orderly-arranged and deposited on the surface of the substrate. By utilizing the magnetic properties of the magnetic nanowire material itself and under the action of a magnetic field, directional arrangement can be realized, and large-area, multiple-angle, multiple-mode, multiple-layer controllable nano material arrangement can be realized; the operation is simple; and the large-area preparation and arrangement of the materials help to promote the development of large-scale and integrated production of semiconductor devices.

Description

technical field [0001] The invention relates to a substrate with magnetic nanowires arranged on the surface and a preparation method thereof, belonging to the technical field of semiconductor material preparation. Background technique [0002] In the prior art, the preparation method of nanomaterials (that is, the method of growing and arranging nanowires) mostly adopts chemical methods, mainly including sol-gel method, hydrothermal and solvothermal synthesis method, chemical precipitation method, template method and so on. However, the raw materials of the sol-gel method are expensive and the sintering between the gel particles is poor; the nanowires prepared by the hydrothermal and chemical precipitation methods are dispersed in the solution and cannot form an ordered array; the equipment used in the template method is simple and easy to operate. It can be carried out at room temperature and pressure, with low production cost and easy to realize industrialized production, ...

Claims

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Application Information

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IPC IPC(8): H01L29/12H01L21/02B82Y40/00B82Y30/00B82Y10/00
CPCB81C1/00214B82Y40/00
Inventor 相文峰贺卓董佳丽岳义赵昆
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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