Growth method of micro-nano functional material and application thereof in quantum dot cell

A technology of functional materials and growth methods, applied in the field of micro-nano functional material growth methods and quantum dot battery applications, to achieve the effects of easy industrialization, low cost, and uniform distribution

Active Publication Date: 2014-05-28
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The great challenge to further improve the performance of these batteries is the crystalline quality of photoanode materials (generally chemically synthesized nanomaterials), the transport channels of charge carriers, and the specific surface area of ​​nanomaterials on photoanodes.

Method used

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  • Growth method of micro-nano functional material and application thereof in quantum dot cell
  • Growth method of micro-nano functional material and application thereof in quantum dot cell
  • Growth method of micro-nano functional material and application thereof in quantum dot cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1: A multifunctional device for growing nanomaterials based on hydrothermal method

[0046] Such as Figure 1~2 Shown, a kind of multifunctional device based on hydrothermal growth nanometer material, this container comprises airtight container 1, heating device 6 and signal display device 7,

[0047] Described airtight container is made up of container bottom, container wall 12 and container cover 13;

[0048] The container wall 12 is integrally formed with the bottom of the container. In the present embodiment, the container is a cylindrical container, such as being designed with an outer diameter of 45 cm, a thickness of the container wall of 2 cm, and a height of 32 cm. These parameters can be adjusted according to production needs. re-customization;

[0049] The container cover 13 is screwed to the container wall 12. Specifically, in this embodiment, the top end of the container wall 12 is provided with a mounting flange 14, and the flange surface is provid...

Embodiment 2

[0053] Example 2: Growth of Rosette Zinc Oxide on Silicon Substrate

[0054] (1) Clean the silicon substrate. Clean according to standard RCA procedures.

[0055] (2) Prepare 3nm zinc oxide seed crystals by magnetron sputtering method, the sputtering parameters are Ar flow rate 5-14.1sccm; working pressure 3Pa; plate flow 160mA; forward power 100w; self-bias voltage 0.18kV; standing wave ratio 0.55 -3.

[0056] (3) Put the growth substrate into a muffle furnace and anneal at 650°C for 0.5h.

[0057] (4) Prepare the nutrient solution used for growing nanomaterials. Prepare a mixed solution of dehydrated zinc acetate (0.1mol / L) and hexamethylenetetramine (0.01mol / L).

[0058] (5) The growth substrate with the seed layer was vertically fixed on the sample holder and placed into a self-designed multifunctional hydrothermal growth device (see Example 1).

[0059] (6) Pour the nutrient solution prepared in step (4) (be careful not to exceed the liquid phase area), and seal the ...

Embodiment 3

[0064] Example 3: Growth of rosette zinc oxide on FTO substrate

[0065] (1) Clean the conductive glass substrate. Ultrasonic cleaning with acetone for 10s, then ultrasonic cleaning with absolute ethanol for 10s, then deionized water for 10s, and finally drying the substrate with nitrogen;

[0066] (2) 4nm zinc oxide seed crystals were prepared by magnetron sputtering, the sputtering parameters were Ar flow rate 5-14.1sccm; working pressure 3Pa; plate flow 160mA; forward power 100w; self-bias voltage 0.18kV; standing wave ratio 0.55 -3.

[0067] (3) Put the growth substrate into a muffle furnace and anneal at 350°C for 0.5-3h.

[0068] (4) Prepare the nutrient solution used for growing nanomaterials. Prepare a mixed solution of dehydrated zinc acetate (0.1mol / L) and hexamethylenetetramine (0.01mol / L).

[0069] (5) After fixing the growth substrate with the seed layer on the sample holder, put it vertically into a self-designed multifunctional hydrothermal growth device (se...

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Abstract

The invention provides a growth method of a micro-nano functional material and an application thereof in quantum dot cell. The method utilizes the special growth dynamics of a liquid membrane near the interface between gas and liquid to perfectly synthesize a nano material with a stereo and layered structure. The invention also provides a micro-nano functional material prepared by the preparation method mentioned above, a quantum dot sensitized solar cell, a device for preparing the micro-nano functional material, and an application of the micro-nano functional material. The manufacturing technology of the invention ingeniously utilizes a chemical method and forces existing in the nature such as capillary force, convection force, and the like to carry out nano material self-assembly. The growth method provided by the invention can be used to prepare nano materials, and has the advantages of low cost, high repeatability, and easy industrialization.

Description

technical field [0001] The invention relates to the technical field of nanomaterial synthesis and device manufacturing, in particular to a micro-nano functional material growth method and its application in quantum dot batteries. Background technique [0002] Micro-nano functional materials have broad application prospects in various fields such as photocatalysis, new energy and biotechnology. Its preparation and application is one of the most cutting-edge topics today. At present, the synthesis methods of micro-nano materials mainly include VLS method, electrochemical deposition method and hydrothermal method. The VLS method requires high temperature conditions; the electrochemical deposition method not only has special requirements for the substrate but also has poor crystallinity of the synthesized material. These deficiencies are important obstacles to the practical application of nanomaterials. Although the hydrothermal method can synthesize nanomaterials with variou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C1/00B82Y40/00H01G9/20
Inventor 吴以治许小亮
Owner UNIV OF SCI & TECH OF CHINA
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