Method for preparing aluminium oxide nano-form photon crystal

An alumina nanometer and photonic crystal technology, applied in the field of electrochemistry, can solve the problems of limiting alumina nanotemplates, unable to obtain alumina nanotemplates, etc., and achieves the effects of low production cost, controllable number of layers, and convenient operation.

Inactive Publication Date: 2006-03-29
WUHAN UNIV
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Problems solved by technology

However, the electrochemical deposition, chemical deposition, and vapor deposition methods used by people to prepare alumina nano-templates can only prepare one-dimensional nanotube materials and their arrays with controllab

Method used

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  • Method for preparing aluminium oxide nano-form photon crystal
  • Method for preparing aluminium oxide nano-form photon crystal

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0025] When the ambient temperature is about 20 degrees Celsius, follow the steps below:

[0026] (1) Cut an aluminum sheet with a thickness of 0.2mm into a shape of 2.5cm×3cm.

[0027] (2) Use acetone to remove oil, then use 0.1mol / L dilute sulfuric acid and dilute sodium hydroxide solution to wash the aluminum sheet.

[0028] (3) In the electrolyte of 80wt% absolute alcohol and 20wt% perchloric acid mixed solution, the treated aluminum sheet was used as the anode, and the platinum sheet was used as the cathode for electrochemical polishing with a voltage of 16v for 3 minutes.

[0029] (4) Use 0.3mol / L oxalic acid as the electrolyte, the polished aluminum sheet as the anode, and the platinum sheet as the cathode, and anodize the aluminum sheet. Voltage 52v, time 6 hours.

[0030] (5) Use a mixed solution of 6 wt% phosphoric acid and 1.8 wt% chromic acid to dissolve the aluminum oxide film formed on the surface of the aluminum sheet.

[0031] (6) Use oxalic acid as the elec...

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Abstract

A process for preparing photon crystal from aluminium oxide nanotemplate includes such steps as dissolving the oxidized surface layer of Al sheet, and alternatively high-voltage anodizing and low-voltage anodizing more times to generate the periodic variation of aluminium oxide nanostructure on the surface of Al sheet, resulting in periodic pore structure.

Description

technical field [0001] The invention relates to a method for preparing photonic crystals by changing the preparation process of aluminum oxide nanometer templates, which belongs to the technical field of electrochemistry. Background technique [0002] It is well known that nanostructure templates are usually used in the preparation of nanomaterials. Due to the ordered structure of the alumina template, an ordered nanostructure assembly system can be produced, and the preparation of the alumina nano-template is simple and low-cost. Therefore, currently, the alumina template is mostly used to prepare nanomaterials. However, the current methods of preparing alumina nano-templates such as electrochemical deposition, chemical deposition, and vapor deposition can only produce one-dimensional nanotube materials and arrays with controllable length and diameter. These existing preparation methods cannot produce Therefore, it is very likely to limit the application of alumina nano-te...

Claims

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Application Information

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IPC IPC(8): C25D11/12
Inventor 郭东来邹宪武
Owner WUHAN UNIV
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