Manufacturing method for nanowire with CuO/ZnO core/shell structure

A manufacturing method and nanowire technology, applied in the field of nanophotonics, can solve the problems of large lattice mismatch of ZnO crystals and difficult realization of nanowires, and achieve the effects of uniform diameter and length distribution, improved efficiency and low manufacturing cost.

Inactive Publication Date: 2011-06-22
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the large lattice mismatch between monoclinic CuO crystal and ZnO crystal with zinc blende structure, it is difficult to grow

Method used

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  • Manufacturing method for nanowire with CuO/ZnO core/shell structure
  • Manufacturing method for nanowire with CuO/ZnO core/shell structure
  • Manufacturing method for nanowire with CuO/ZnO core/shell structure

Examples

Experimental program
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Embodiment

[0036] First, cut high-purity (99.9%) copper foil into small pieces of copper foil with a width of 10mm x 20mm length x 0.5mm thickness, flatten them with a glass or metal plate, and place the flat copper foil in alcohol and acetone at a volume of 1: Ultrasonic cleaning in a mixture of 1 ratio for 3 minutes to remove the dirt adhering to the surface, put the copper foil cleaned with alcohol and acetone into 1mol / L dilute hydrochloric acid solution for 3 minutes to remove the oxide on the surface, take out Afterwards, rinse with deionized water for several times, and then dry naturally in the air; secondly, attach the cleaned and dried copper foil to the quartz plate and place it on an electric furnace at 500°C for 4 hours in the air and then cool it rapidly to At room temperature, the CuO nanowire array was obtained; again, on the copper foil substrate on which the CuO nanowire array had been grown, drop 5 drops of an ethanol solution saturated with zinc acetate on the surface ...

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Abstract

The invention belongs to the field of nanophotonics, and relates to a manufacturing method for a nanowire with a CuO/ZnO core/shell structure. The method comprises the following steps of: 1, heating a copper foil with a cleaned surface in the air by using a thermal oxidation method to grow a CuO nanowire array arranged directionally; 2, dripping saturated zinc acetate ethanol solution onto the CuO nanowire array prepared in the step 1 and naturally airing the solution in the air; and 3, heating the CuO nanowire array covered with zinc acetate on an electric stove of 350 DEG C for 15 to 30 minutes to obtain the CuO/ZnO core/shell structure. The method provided by the invention has the advantages of simplicity, quickness, low cost, capacity of being produced on a large scale, and the like.

Description

technical field [0001] The invention belongs to the field of nanophotonics, and in particular relates to a method for preparing CuO / ZnO core / shell structure nanowires. Background technique [0002] Nanowires with a Core / shell structure can tailor material properties at will to achieve specific functions that cannot be achieved by a single component. The coaxial Core / shell nanowire structure has been proven to have great application prospects in the field of nanometer devices such as coaxial common gate transistors, laser diodes and photovoltaic devices. At present, chemical vapor deposition (CVD) is usually used to prepare core / shell nanowire structures [such as Lincoln J. Lauhon, Mark S. Gudiksen, Deli Wang, Charles M. Lieber, Epitaxial core-shell and core-multishell nanowire heterostmctures. Nature 420, 2002 (57-61)] and molecular beam epitaxy technology, etc. However, the synthesis of coaxial core / shell structure nanowires by these methods requires controlled axial epit...

Claims

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Application Information

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IPC IPC(8): H01L31/0336H01L31/18
CPCY02P70/50
Inventor 李宝军赵新宏王鹏
Owner SUN YAT SEN UNIV
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