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Method and device for in situ preparing zinc oxide nanometer crystal using coaxial oxygen transporting laser

A zinc oxide nano, in-situ preparation technology, applied in the field of ceramic materials, can solve the problems of difficult extraction and use of zinc oxide nano crystals, non-directional zinc oxide crystals, etc., and achieve the effect of convenient extraction and use, and easy extraction

Inactive Publication Date: 2006-04-26
JIANGSU UNIV
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Problems solved by technology

However, this method can only generate a certain type of zinc oxide nanocrystals, and the deposited zinc oxide crystals are non-directional, which brings difficulties to the subsequent extraction and use of zinc oxide nanocrystals.

Method used

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  • Method and device for in situ preparing zinc oxide nanometer crystal using coaxial oxygen transporting laser
  • Method and device for in situ preparing zinc oxide nanometer crystal using coaxial oxygen transporting laser
  • Method and device for in situ preparing zinc oxide nanometer crystal using coaxial oxygen transporting laser

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Embodiment Construction

[0019] The details and working conditions of the specific device proposed by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] The device for in-situ preparation of zinc oxide nanocrystals by coaxial oxygen-feeding laser of the present invention includes: reaction furnace 1, infrared thermometer 2, observation window 3, workbench 4, metal zinc plate 5, conical oxygen flow 6, laser beam 7. Coaxial oxygen delivery device 8, air supply hole 9, vacuum pump 10. Wherein the infrared thermometer 2 is set on the top of the reaction furnace 1, the observation window 3 is set on the side wall of the reaction furnace 1, the workbench 4 for placing the workpiece is set at the bottom of the reaction furnace 1, and in the corresponding reaction furnace 1 A coaxial oxygen supply device 8 composed of a coaxial conical oxygen flow 6 and a laser beam 7 is provided above, and an air supply hole 9 and a vacuum pump 10 are provided on t...

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Abstract

The present invention relates to nanometer zinc oxide crystal preparing method and apparatus, and is especially one kind of in-situ laser method and apparatus for preparing nanometer zinc oxide crystal. The apparatus includes reaction furnace, infrared thermometer, observation window, work table, metal zinc plate, annular oxygen flow, laser beam, coaxial oxygen feeder, oxygen feeding hole and vacuum pump. The preparation principle of the present invention is that the continuous heat effect of the laser heats the zinc plate to over smelting point to form zinc vapor and the zinc vapor reacts with oxygen the coaxially conveyed oxygen to generate 1D, 2D and 3D nanometer zinc oxide crystal on the zinc plate as substrate in the naturally growth direction. By means of controlling the laser power, the laser spot diameter, the laser action time and the work stable, the heating area on the zinc plate may be controlled.

Description

Technical field: [0001] The invention belongs to the technical field of ceramic materials, and relates to a method and a device for preparing zinc oxide nanocrystals, in particular to a method and a device for in-situ preparation of zinc oxide nanocrystals by adopting a coaxial oxygen delivery laser. Background technique: [0002] The common zinc oxide nanocrystal preparation technology is to use physical vapor deposition (PVD), chemical vapor deposition (CVD), pulsed laser deposition (PLD) and other methods to increase the temperature of metal zinc powder to vaporize the zinc powder, and The gas in the reaction tube (reaction furnace) (such as O 2 , or O 2 It reacts with S, AL, IN and other additive gases), and then the temperature is kept for a period of time and then returns to room temperature, and zinc oxide crystals are deposited on the substrate (such as a silicon wafer). If the gas flow, pressure and other related conditions are controlled, these processing methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02C30B29/16C30B29/60
Inventor 张永康鲁金忠周骏孔德军
Owner JIANGSU UNIV
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