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Applicable method for growing patterned ZnO nanostructures on different substrates

A technology of zinc oxide nano and zinc oxide nanorods, which is applied in the field of nanomaterials, can solve the problems of lack of space controllability, difficulty in patterned growth, etc., and achieve the effect of patterned growth

Inactive Publication Date: 2020-08-11
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both methods lack spatial controllability and it is difficult to achieve patterned growth

Method used

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  • Applicable method for growing patterned ZnO nanostructures on different substrates
  • Applicable method for growing patterned ZnO nanostructures on different substrates
  • Applicable method for growing patterned ZnO nanostructures on different substrates

Examples

Experimental program
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Effect test

preparation example Construction

[0033] (1) Preparation of polydopamine film:

[0034] Method 1: Submerge the substrate in the dopamine solution for 10-30 minutes, take it out and rinse it with water for the second time, repeat the same soaking operation several times, and finally rinse it with water for the second time, and dry it with nitrogen. The dopamine solution uses a pH of 6-9 Tris-hydrochloric acid buffer solution preparation, the dopamine concentration is 0.1-10mg / mL;

[0035] Method 2: Submerge the substrate in a dopamine solution for 1 to 12 hours. The dopamine solution is prepared as follows: dopamine is dissolved in a tris-hydrochloric acid buffer solution with a pH of 8.5, and the concentration of dopamine is 2 mg / mL.

[0036] (2) Iron ions activate different substrates:

[0037] Prepare FeCl 3 Fresh solution (concentration 10mM-0.01nM), put different substrates into the solution and soak for 15-120 minutes, take it out, wash it with water twice, and dry it with nitrogen gas. This method ref...

Embodiment 1

[0047] Example 1 Growth of zinc oxide nanostructures on glass slides (direct growth of zinc oxide nanostructures after iron ion activation)

[0048] The specific steps are:

[0049] 1) Activate iron ions on the substrate: prepare FeCl with a concentration of 5mM 3 Fresh solution, put the substrate into the solution and soak for 15-120 minutes, take it out, wash it with water twice, and dry it with nitrogen. This method refers to J.Mater.Chem., 2009, 19, 3847 and Chem.Mater., 2008, 20,4542;

[0050]2) Growth of zinc oxide nanorods by wet chemical method: growth of randomly oriented zinc oxide nanorods refers to J.Mater.Chem., 2009, 19, 3847 and Chem.Mater., 2008, 20, 4542, and the configuration contains Zn(NO 3 ) 2 ·6H 2 A solution of O (0.1M), 3% (v / v) ammonia water (28wt%), 1% (v / v) ethylenediamine (≥99%) and 97mL deionized water, insert the substrate vertically into the solution, water bath Heat to 75°C for 2 hours, take out the substrate, rinse with tap water, and blow...

Embodiment 2

[0051] Example 2 Growth of zinc oxide nanostructures on glass slides (direct growth of zinc oxide nanostructures after preparing polydopamine film)

[0052] The specific steps are:

[0053] 1) Prepare a polydopamine film on the surface of an inert substrate: immerse the glass slide in the dopamine solution for 10-30 minutes, rinse it with water twice after taking it out, repeat the same soaking operation 5 times, and finally rinse it with water twice, and dry it with nitrogen. The dopamine solution was prepared by tris-hydrochloric acid buffer solution with a pH of 8.5, and the dopamine concentration was 1 mg / mL.

[0054] 2) Step 2) is consistent with Example 1.

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Abstract

The invention discloses a method suitable for different substrates to grow patterned zinc oxide nano-structures. A patterned polydopamine film is prepared on a substrate, and the patterned zinc oxide nano-structures are grown through the inhibition effect of the polydopamine on the growth of the zinc oxide nano-structures. The polydopamine is used as an inhibition layer so that inhibition of wet chemical growth of the zinc oxide can be realized, and the patterned growth of the zinc oxide can be realized on any inert substrate through patterning of the polydopamine film by combining an iron ion activation or zinc oxide seed layer; and the patterned growth of the zinc oxide can also be realized on the metal or metal oxide substrate by using the polydopamine.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and in particular relates to a method suitable for growing patterned zinc oxide nanostructures on different substrates. Background technique [0002] Position-controllable (patterned) ZnO nanostructures grown on different substrates, such as nanorods, nanosheets, and nanowires, are widely used in various fields such as ultraviolet detection, solar energy conversion, biosensing, field effect transistors, and light-emitting devices. It has important uses. Among the various methods of growing zinc oxide at present, wet chemical liquid phase growth is an important technology. It has the advantages of low cost, low energy consumption, and suitable for different substrates, but the disadvantage is that its growth Closely related to the properties of the substrate, the controllability is poor. Therefore, it is very important to develop a method that can effectively regulate the growth of ZnO to achie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L21/02B82Y40/00
CPCB82Y40/00H01L21/02554H01L21/02603H01L21/02628H01L21/02642H01L21/02645
Inventor 胡卫华汪雪辉
Owner SOUTHWEST UNIV
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