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Method for realizing evolution of various nano morphologies of zinc oxide

A technology of zinc oxide nanometer and nanometer morphology, applied in zinc oxide/zinc hydroxide, nanotechnology, nanotechnology and other directions, can solve problems such as reducing process steps and processes

Pending Publication Date: 2020-10-20
成都能太科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method for realizing the evolution of various nano-morphologies of zinc oxide, which eliminates the mismatch between the substrate and the zinc oxide crystal lattice, and avoids the substrate's influence on the growth of zinc oxide. It is beneficial to the hydrothermal growth of zinc oxide with different morphologies, so that a variety of substrates can be used; and the realized zinc oxide nanorod arrays, nanoneedle clusters and nanoneedle clusters use the same precursor and ratio , can be obtained separately only by adjusting the pH value in the later stage, greatly reducing the existing process steps and processes, convenient operation, strong controllability, and truly realizing the effect of one-time rationing of multiple shapes

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  • Method for realizing evolution of various nano morphologies of zinc oxide
  • Method for realizing evolution of various nano morphologies of zinc oxide
  • Method for realizing evolution of various nano morphologies of zinc oxide

Examples

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Embodiment 1

[0049] A method for realizing the evolution of zinc oxide (ZnO) multiple nano-morphologies, comprising the following steps:

[0050] (1) Use AC magnetron sputtering system to prepare nano-zinc oxide seed crystal layer on ITO glass substrate, use argon gas with a purity of 99.99% as sputtering gas, and its working pressure is 3×10 -3 Pa, the substrate temperature is room temperature (25° C.), the flow rate of the sputtering gas is 20 sccm, the distance between the RF source and the substrate is 4 cm, and the sputtering power is 120 W for 30 minutes. Before formally sputtering the substrate, a high-purity zinc oxide target with a diameter of 110 mm and a thickness of 6 mm (the purity of the target is 99.99%) is pre-sputtered for 5 minutes to remove impurities and reduce the impact of impurity particles on zinc oxide in the later stage. Crystal defects caused by nanorod growth.

[0051] (2) Annealing the seed layer in an air atmosphere at a temperature of 550° C. for 2 hours in ...

Embodiment 2

[0057] A method for realizing the evolution of various nano-morphologies of zinc oxide, comprising the following steps:

[0058] (1) The nano-zinc oxide seed layer was prepared on the soda glass substrate using an AC magnetron sputtering system. Its working air pressure is 5x10 -3 Pa, other conditions and processes are exactly the same as step (1) in Example 1, and will not be repeated here.

[0059] (2) Annealing the seed layer in an air atmosphere at a temperature of 500° C. for 2 hours in a horse-boiling furnace to better control the growth of zinc oxide crystals.

[0060] (3) Using a hydrothermal method to grow zinc oxide nanostructures on the prepared seed layer. The precursor solution uses hexamethylenetetramine (C 6 h 12 N 4 , with a purity of 99.0%) and zinc nitrate (Zn(NO 3 ) 2 , with a purity of 99.0%), and then adjust the pH values ​​with ethanolamine and hydrochloric acid. Finally, the prepared solutions were poured into polytetrafluoroethylene autoclaves, ...

Embodiment 3

[0065] A method for realizing the evolution of zinc oxide (ZnO) multiple nano-morphologies, comprising the following steps:

[0066] (1) A nano-zinc oxide seed layer was prepared on a quartz substrate using an AC magnetron sputtering system. Its working air pressure is 8x10 -3 Pa, other conditions and processes are exactly the same as step (1) in Example 1, and will not be repeated here.

[0067] (2) Annealing the seed crystal layer in an air atmosphere at a temperature of 600° C. for 2 hours in a horse-boiling furnace to better control the growth of zinc oxide crystals.

[0068] (3) Using a hydrothermal method to grow zinc oxide nanostructures on the prepared seed layer. The precursor solution uses hexamethylenetetramine (C 6 h 12 N 4 , with a purity of 99.0%) and zinc nitrate (Zn(NO 3 )2 , with a purity of 99.0%), and then adjust the pH values ​​with ethanolamine and hydrochloric acid. Finally, the prepared solutions were poured into polytetrafluoroethylene autoclaves...

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Abstract

The invention discloses a method for realizing evolution of various nano morphologies of zinc oxide. The method comprises the following steps 1, preparing a seed crystal layer, namely preparing a zincoxide seed crystal layer on a substrate by using a magnetron sputtering system; and 2, growing a zinc oxide nano microstructure on the prepared seed crystal layer, namely preparing a precursor solution from hexamethylenetetramine and zinc nitrate, then adjusting the pH of the precursor solution through ethanolamine and / or hydrochloric acid, and controlling a zinc oxide nano microstructure and thelike to grow on the seed crystal layer under different pH conditions on the basis of hydrothermal reaction. The method is beneficial to hydrothermal growth of zinc oxide with different morphologies,so that various substrates can be adopted; and the realized zinc oxide nanorod array, nanoneedle cluster and nanoneedle cluster can be respectively obtained by adopting the same precursor and proportion and only adjusting the pH value in the later period, so that the existing process steps and flows are greatly reduced, the operation is convenient, the controllability is strong, and the effect ofproportioning multiple morphologies at one time is realized.

Description

technical field [0001] The invention relates to the technical field of new materials, and more specifically, relates to a method for realizing the evolution of various nano-morphologies of zinc oxide. Background technique [0002] With the continuous development of today's nano science and technology, many nano materials with excellent properties have gradually been recognized and understood by people. In recent years, countries all over the world have launched research programs on nanomaterials, and the technology of organizing, growing nanomaterials and preparing them into nanodevices has been paid more and more attention. Among a series of nanomaterials, zinc oxide (ZnO) nanomaterials have many unique characteristics, and have broad application prospects in the fields of ultraviolet detection, catalysis, biomedicine, electronic information, etc., and have become a research hotspot of nanomaterials. one. [0003] Today, tens of thousands of papers and patents report ZnO ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/03C03C17/245B82Y30/00B82Y40/00
CPCC01G9/03C03C17/245B82Y30/00B82Y40/00C01P2002/72C01P2004/03C01P2004/61
Inventor 李继涛吴海华
Owner 成都能太科技有限公司
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