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Controllable growth process of ZnO nano tube with special topography

A nanotube and morphology technology, applied in the direction of zinc oxide/zinc hydroxide, etc., can solve the problems of complex zinc nanotubes with impurities, etc., and achieve the effect of simple operation, simple method and high surface roughness

Inactive Publication Date: 2012-12-26
JILIN NORMAL UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, in these methods, the zinc oxide nanotubes obtained are not single crystals but polycrystalline, and these methods for obtaining single crystal zinc oxide nanotubes need to be carried out under high temperature (400-1300 degrees) conditions and this process is very complicated ( Foreign catalysts or templates, etc.), so it is easy to make ZnO nanotubes with impurities. Therefore, we urgently need to explore a simple way to obtain ZnO nanotubes

Method used

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  • Controllable growth process of ZnO nano tube with special topography
  • Controllable growth process of ZnO nano tube with special topography
  • Controllable growth process of ZnO nano tube with special topography

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Experimental program
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Embodiment Construction

[0025] in the attached figure 2 Middle: ZnO nanotubes prepared with a growth time of 72 hours.

[0026] in the attached image 3 Middle: ZnO nanosheets prepared with growth time of 24 hours and 48 hours, respectively.

[0027] The growth process of this method has experienced the formation of ZnO nanosheets, ZnO nanocolumns, and ZnO nanotubes. First, circular ZnO nanosheets are grown on a silicon substrate, and then circular ZnO nanosheets are grown as the growth time increases. The ZnO nanocolumns are piled up to form ZnO nanocolumns. As the reaction time continues to prolong, the ZnO nanocolumns undergo an aging process to form ZnO nanotubes.

[0028] Prepare the ZnO crystal nucleus layer on the substrate, and then use the chemical water bath deposition method to grow the nanorod array, and control the diameter of the ZnO nanorod array by changing the density and size of the ZnO nanoparticle;

[0029] The specific steps are as follows:

[0030] ①. First, prepare a hexam...

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Abstract

The invention relates to a controllable growth process of a ZnO nano tube with a special topography. The growth process comprises formations of ZnO nano sheets, ZnO nano columns and ZnO nano tubes. The process specially comprises the following steps: firstly, growing round ZnO nano sheets on a silicon substrate; subsequently, stacking the round ZnO nano sheets along with the elongation of growth time to form the ZnO nano columns; and along with the continuous elongation of reaction time, aging the ZnO nano columns so as to form the ZnO nano tubes. The process is simple and practicable, the grown nano column has large surface area and high surface roughness, and the ZnO nano tube is of a layered stack structure.

Description

technical field [0001] The invention relates to a controllable growth process of ZnO nanotubes with special morphology. Background technique [0002] Iijima's discovery of carbon nanotubes in 1991 strongly aroused people's theoretical and experimental interest in tubular materials. Various tubular materials have great potential applications in the fields of scanning microscopes and sensors, field emission devices, biological probes and nanometers. This is all because of their new physical and chemical properties caused by characteristics such as low dimensionality, large surface-to-volume ratio, and high anisotropy. [0003] ZnO has become one of the very important functional materials with wide potential applications in bright electrode gas sensors, acousto-optic devices, and piezoelectric devices because of its large bandgap energy of 3.37eV at room temperature and 60meV large exciton binding energy. Preliminary progress has been made in the study of the one-dimensional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02
Inventor 杨景海郑佳红翟宏菊
Owner JILIN NORMAL UNIV