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Preparation method of zinc oxide nano or micro tube

A technology of micron tubes and rectangles, applied in the field of nano/micron materials, can solve problems such as cumbersome process, rough surface, and irregular product shape

Active Publication Date: 2016-04-13
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing ZnO nano or micro tubes, so as to overcome the problems of complex process, irregular product appearance and rough surface in the existing preparation technology.

Method used

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  • Preparation method of zinc oxide nano or micro tube
  • Preparation method of zinc oxide nano or micro tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Ultrasonic clean the monocrystalline silicon wafer (18mm×14mm) with deionized water and absolute ethanol for 5 minutes respectively, take a quartz boat with a size of 18mm×14mm×10mm in the boat and ultrasonically clean it with deionized water for 5 minutes, and dry it for later use .

[0018] (2) Prepare ZnO powder, carbon powder (purity >99.9%) and water at a weight ratio of 6:6:3, put them in an agate mortar and mix them evenly, and use them as reaction materials.

[0019] (3) Put the reaction raw materials into the quartz boat, and buckle the monocrystalline silicon slice on the top of the raw materials.

[0020] (4) Both ends of the quartz tube are open, and the furnace temperature rises to 1050°C. Put the quartz boat into the quartz tube of the horizontal tube furnace near the thermocouple, react for 10 minutes, take out the quartz boat and naturally cool it to room temperature, and take out the single crystal. Silicon wafers, the white crystals on the silicon...

Embodiment 2

[0023] Prepare raw materials with ZnO powder, carbon powder and water in a weight ratio of 6:6:3, put them into a quartz boat, and put Al 2 o 3 The ceramic sheet is obliquely buckled above the raw material. When the furnace temperature rose to 1050° C., the quartz boat was pushed into the quartz tube and reacted for 10 minutes. Others were the same as in Example 1.

Embodiment 3

[0025] Prepare ZnO powder, carbon powder and water at a weight ratio of 12:6:3, put them into a quartz boat, and when the furnace temperature rises to 1050°C, push the quartz boat into the quartz tube and react for 10 minutes. Others are the same as in Example 1.

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Abstract

The invention discloses a preparation method of ZnO nanotubes or microtubes, belonging to the technical field of preparation of nano / micro materials. A basic preparation process comprises the following steps: uniformly mixing ZnO powder, carbon powder and water according to a certain weight proportion as raw materials, putting the raw materials into a quartz boat, reversely buckling deposited substrates above the raw materials, heating a tubular furnace to more than 1000 DEG C, then pushing the quartz boat to a center position of a quartz pipe of the tubular furnace, preserving heat for a certain time, then pulling out the quartz boat, naturally cooling to room temperature, and removing silicon wafers to obtain products ZnO nanotubes or microtubes. The preparation method disclosed by the invention is simple in process, good in repeatability, regular in product morphology, smooth in surface and high in crystal quality.

Description

technical field [0001] The invention relates to a nano / micro material, in particular to a method for preparing a ZnO nano or micro tube. The synthesis process is simple and repeatable, and the obtained product has regular cross-section, smooth surface and good crystal quality. Background technique [0002] As a II-VI direct bandgap semiconductor material, ZnO is an ideal material for optoelectronic nanodevices due to its wide bandgap (3.3eV) and high exciton binding energy (60meV), such as ZnO gas-sensitive materials, ultraviolet light-emitting diodes, etc. , Optical microcavity and so on. Therefore, tubular ZnO nanostructures have great application prospects in various fields and have been extensively studied. [0003] So far, the preparation methods of tubular ZnO nano / micro structures generally adopt liquid phase method, chemical vapor deposition method and template method, among which the template method (D.S.Kim, S.-M.Lee, R.Scholz, M.Knez, U. J.Fallert, H.Kalt, andM...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02B82Y30/00
CPCC01G9/03C01P2002/72C01P2004/03C01P2004/60C01P2004/64
Inventor 董红星詹劲馨张龙柳洋李京周牟南历虞杰
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI