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Method for preparing copper-doped zinc oxide nano-comb

A nano-zinc oxide, copper-doped technology, applied in gaseous chemical plating, metal material coating process, coating and other directions, can solve the problem of lack of detailed reports, and achieve the effect of simple equipment, convenient operation and strong flexibility

Active Publication Date: 2013-11-06
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In recent years, the research on copper-doped ZnO has aroused the interest of many scholars. There have been a large number of reports on the preparation of copper-doped ZnO, and the influence of doping on the ferromagnetic properties, optical and electrical properties of ZnO at room temperature. There are few reports on the preparation of copper-doped ZnO by chemical vapor deposition (CVD) and the effect of doping on the morphology and photoluminescent properties of ZnO, especially the preparation of copper-doped ZnO nanocombs. Detailed report

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specific Embodiment approach 1

[0023] Embodiment one: the preparation method of copper-doped zinc oxide nano-comb of the present invention, its embodiment is as follows:

[0024] 1) Cut the copper sheet to 1.5cm 1.5cm size.

[0025] 2) Put 1.5cm The 1.5cm pure copper substrate was immersed in dilute hydrochloric acid and ultrasonically cleaned for 10 minutes to remove surface oxides, then ultrasonically cleaned in acetone, deionized water and ethanol solutions for 10 minutes each, and then soaked in ethanol for use.

[0026] 3) Put zinc oxide powder and carbon powder in a mass ratio of 1:1, grind and mix them evenly, put them into a quartz boat, and move them into the heating center area of ​​the tube furnace.

[0027] 4) Dry the ultrasonically cleaned substrate (pure copper substrate) in argon, put it into a specific area of ​​the tube furnace, and then pass argon into the furnace.

[0028] 5) Set the temperature control program to start the tube furnace, raise the temperature of the system to 920°C, ...

specific Embodiment approach 2

[0030] Embodiment 2: This embodiment is different from Embodiment 1 in that the growth temperature is 910°C.

[0031] Thermal diffusion will occur between different atoms in different substances in contact with each other at high temperature due to the concentration gradient. Since the growth of ZnO nanocombs is carried out on the surface of high-temperature copper foil, ZnO and CuO can also be observed through the X-ray diffraction pattern of the sample. Therefore, it can be judged that the precipitate is copper-doped zinc oxide. In addition, through the SEM photo of the precipitate, it can be visually observed that the precipitate is in the shape of a nano-comb, and the size is on the nanometer scale. Depend on Figure 1-5 It can be seen that when the growth temperature is 910 and 920 °C, the morphology of the sample is nano-comb.

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Abstract

The invention discloses a method for preparing a copper-doped zinc oxide nano-comb, and relates to a preparation method of a nano-material. The method includes the steps: performing ultrasonic treatment for a pure copper substrate and then soaking the pure copper substrate in ethanol for standby application; grinding and uniformly mixing zinc oxide powder and carbon powder according to the mass ratio of 1:1, placing the powder into a quartz boat and shifting the quartz boat into a heating center area of a tubular furnace; blow-drying the ultrasonically cleaned pure copper substrate in inert gas, placing the pure copper substrate into a specific area of the tubular furnace and then leading the inert gas into the furnace; setting tubular furnace starting temperature control programs, heating up a system to reach 910-920 DEG C and keeping the temperature for 30min; taking out a sample after the system is naturally cooled. Deposit attached to the surface of the copper substrate is the copper-doped zinc oxide nano-comb. The copper-doped zinc oxide nano-comb is directly obtained through a copper foil for the first time, the technology is simple, catalysts do not need to be individually added, and the prepared copper-doped zinc oxide nano-comb is of a multilayer structure and has a large specific surface area.

Description

technical field [0001] The invention relates to a preparation method of a nano material, in particular to a preparation method of a copper-doped zinc oxide nanocomb. Background technique [0002] Zinc oxide (ZnO) is a direct wide bandgap (3.37eV) compound semiconductor material. Its room temperature exciton binding energy is as high as 60 meV. Its nanomaterials have rich surface morphology and structure, especially the nanocomb multilayer structure Zinc oxide, because of its novel morphology and excellent optical properties, can be used in semiconductor light-emitting devices, gas sensor devices, piezoelectric devices, solar cells, biomedicine and other fields and has attracted a lot of attention. [0003] The first condition for preparing devices with both information processing and information storage functions is to obtain a semiconductor material with room temperature ferromagnetism, and ZnO can be modified into an excellent dilute magnetic semiconductor material by dopi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/40C23C16/44
Inventor 王金忠兰飞飞王敦博
Owner HARBIN INST OF TECH
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