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Method and device for preparing monocrystal Ag-doped zinc oxide hexagonal micro tube by vapor deposition

A technology of vapor deposition and zinc oxide, which is applied in low-dimensional nanomaterials and nanoscale fields, can solve the problems of difficult operation and high assembly cost of nanodevices, and achieve the effects of low equipment requirements, high controllability and simple process

Pending Publication Date: 2017-04-26
濮阳市质量技术监督检验测试中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small scale of nanomaterials and the characteristics of difficult manipulation, the assembly cost of nanodevices is very high.

Method used

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  • Method and device for preparing monocrystal Ag-doped zinc oxide hexagonal micro tube by vapor deposition
  • Method and device for preparing monocrystal Ag-doped zinc oxide hexagonal micro tube by vapor deposition
  • Method and device for preparing monocrystal Ag-doped zinc oxide hexagonal micro tube by vapor deposition

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Embodiment 1

[0022] Embodiment 1, the method for preparing monocrystalline Ag-doped zinc oxide hexagonal microtubes by vapor deposition, the first step is to mix 0.01 mol of zinc nitrate and silver nitrate for doping, the mixing amount is 5% mol of zinc nitrate, mix The final powder was dissolved in 50 ml of deionized water to form a zinc nitrate solution, 0.03 mol of citric acid and 6.6 ml of ethylene glycol were added to the solution, and the prepared mixed solution was stirred at 80°C for 1 hour to obtain a sol, and then at 150 The gel was obtained at a constant temperature of 8 hours at ℃; the prepared gel was cracked at a constant temperature of 400°C for 1 hour to obtain an amorphous C-Zn-O-Ag composite precursor, which was ground into powder with a mortar for later use.

[0023] In the second step, the powder product obtained in the first step is moved into a ceramic boat, and the temperature is raised in the quartz tube of the tubular resistance furnace at a heating rate of 15°C / min...

Embodiment 2

[0024] Embodiment 2, the purity >=98% of zinc nitrate.

Embodiment 3

[0025] Embodiment 3, the purity >=98% of metal silver nitrate.

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Abstract

The invention provides a method for preparing a monocrystal Ag-doped zinc oxide hexagonal micro tube at low cost and with good controllability by vapor deposition, and also aims at providing a device for preparing a monocrystal Ag-doped zinc oxide hexagonal micro tube by vapor deposition. The technical scheme provided by the invention is as follows: a monocrystal-doped zinc oxide tubular micro-nano structure is obtained by utilizing a tubular resistance furnace and applying a method with combination of vertical flow phase change reaction and gas-liquid-solid crystal growth mechanism, and the tube is characterized in that Ag is doped in the hexagonal micro tube and has the doping quantity accounting for 2%mol of zinc oxide, the hexagonal micro tube is of a monocrystal structure, the Ag-doped zinc oxide hexagonal micro tube has the length of a dozen micrometers, the length of each side of a hexagonal prism is 1.5 microns, and the tube diameter is 1 micron.

Description

[0001] Technical field: [0002] The invention relates to low-dimensional nanomaterials and nanotechnology, in particular to a method and a device for preparing single-crystal Ag-doped zinc oxide hexagonal microtubes by vapor deposition. [0003] Background technique: [0004] Due to their unique physical properties, semiconductor nanomaterials have broad application prospects in various optoelectronic devices. The direct bandgap semiconductor ZnO has a bandgap energy of 3.37 eV and a maximum binding energy of 60 meV. It has important application prospects. It is a material for constructing heterojunctions or superlattices, and can obtain high-performance laser diodes and light-emitting diode devices. , which has attracted extensive attention. Various shapes of ZnO have been successfully prepared, such as: nanowires, nanobelts, nanotubes, nanorings and so on. Due to the tiny scale of nanomaterials and the difficulty of manipulation, the assembly cost of nanodevices is very hi...

Claims

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Application Information

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IPC IPC(8): C30B29/16C30B29/66C30B25/00
CPCC30B25/00C30B29/16C30B29/66
Inventor 巩合春赵洪涛霍磊陈红敏黄燕任广义
Owner 濮阳市质量技术监督检验测试中心