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Method of catalytic preparation of copper-indium-tellurium nanowires

A catalytic preparation, copper indium tellurium technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems that the preparation method of copper indium tellurium nanowires has not been reported, and achieve cheap instruments and equipment , The effect of simple operation process

Active Publication Date: 2014-09-24
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been reported that copper indium tellurium nanoparticles have been synthesized by microwave radiation method, solvothermal method, etc., but the preparation method of copper indium tellurium nanowires has not been reported yet.

Method used

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  • Method of catalytic preparation of copper-indium-tellurium nanowires
  • Method of catalytic preparation of copper-indium-tellurium nanowires
  • Method of catalytic preparation of copper-indium-tellurium nanowires

Examples

Experimental program
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Effect test

Embodiment 1

[0035] 1. Preparation of catalyst - toluene solution of bismuth nanoparticles:

[0036] Mix 0.5 mL of 1 mol / L bis(trimethylsilyl)amide bismuth solution in tetrahydrofuran with 2 mL of bis(trimethylsilyl)amide bismuth content of 1 mol / L The tetrahydrofuran solution of sodium bis(trimethylsilyl)amide of L was mixed to form a mixed solution containing bismuth precursor, which was placed in a syringe.

[0037] Another 5 g of polyvinylpyrrolidone-hexadecane block copolymer and 15 g of diphenyl ether were magnetically stirred and heated to 180° C. under nitrogen protection to form a reaction system.

[0038]The mixed solution containing bismuth precursor was injected into the reaction system, and the solution changed color rapidly to black. After reacting for 30 minutes, remove the heat source, cool to room temperature, then add 30mL of methanol and centrifuge, use a mixed solvent of toluene and methanol to repeatedly disperse and centrifuge for 3 to 4 times, and centrifuge the sol...

Embodiment 2

[0048] 1. Preparation of catalyst - toluene solution of bismuth nanoparticles:

[0049] Mix 0.5 mL of 1 mol / L bis(trimethylsilyl)amide bismuth solution in tetrahydrofuran with 2 mL of bis(trimethylsilyl)amide bismuth content of 1 mol / L The tetrahydrofuran solution of sodium bis(trimethylsilyl)amide of L was mixed to form a mixed solution containing bismuth precursor, which was placed in a syringe.

[0050] Another 5 g of polyvinylpyrrolidone-hexadecane block copolymer and 15 g of diphenyl ether were magnetically stirred and heated to 180° C. under the protection of nitrogen to form a reaction system.

[0051] The mixed solution containing bismuth precursor was injected into the reaction system, and the solution changed color rapidly to black. After reacting for 30 minutes, remove the heat source, cool to room temperature, then add 30mL of methanol and centrifuge, use a mixed solvent of toluene and methanol to repeatedly disperse and centrifuge for 3 to 4 times, and then centr...

Embodiment 3

[0061] 1. Preparation of catalyst - toluene solution of bismuth nanoparticles:

[0062] Mix 0.5 mL of 1 mol / L bis(trimethylsilyl)amide bismuth solution in tetrahydrofuran with 2 mL of bis(trimethylsilyl)amide bismuth content of 1 mol / L The tetrahydrofuran solution of sodium bis(trimethylsilyl)amide of L was mixed to form a mixed solution containing bismuth precursor, which was placed in a syringe.

[0063] Another 5 g of polyvinylpyrrolidone-hexadecane block copolymer and 15 g of diphenyl ether were magnetically stirred and heated to 180° C. under the protection of nitrogen to form a reaction system.

[0064] The mixed solution containing bismuth precursor was injected into the reaction system, and the solution changed color rapidly to black. After reacting for 30 minutes, remove the heat source, cool to room temperature, then add 30mL of methanol and centrifuge, use a mixed solvent of toluene and methanol to repeatedly disperse and centrifuge for 3 to 4 times, and then centr...

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Abstract

The invention discloses a method of catalytic preparation of copper-indium-tellurium nanowires, and belongs to the field of production technologies of a new generation of film solar cell materials. The method comprises the following steps: respectively preparing methylbenzene solution of bismuth nanoparticles and precursor solution containing indium acetate, copper acetate and tellurium, heating trioctylphosphine under the protection of nitrogen, adding the methylbenzene solution of the bismuth nanoparticles, dropping the precursor solution containing the indium acetate, the copper acetate and the tellurium, after the reaction is completed, cooling and injecting methylbenzene, centrifuging, taking a solid phase and drying in vacuum after centrifugal washing through methylbenzene so as to obtain the copper-indium-tellurium nanowires. According to the method, the metal bismuth nanoparticles can be taken as a catalyst, the adopted instrument and equipment are cheap, the operation process is simple, a stoichiometric ratio of multi-component materials is effectively controlled to obtain the high-purity copper-indium-tellurium nanowires, and a large batch of high-quality nanowires can be produced. In addition, the length of the nanowires can be controlled through adjusting the concentration of the bismuth nanoparticles or the concentration of the precursor.

Description

technical field [0001] The invention belongs to the technical field of production of new-generation thin-film solar battery materials, and in particular relates to a method for preparing copper indium tellurium nanowires. Background technique [0002] The preparation methods of one-dimensional semiconductor nanowires are mainly divided into gas-phase method and liquid-phase method. Among them, the gas-phase method requires more expensive instruments and equipment, the operation process is more complicated, the waste of raw materials is serious, and the stoichiometric ratio of multi-components cannot be effectively controlled. , The output of synthesized nanowires is limited, which limits the practical application of material preparation. Compared with the gas phase method, especially the Solution-Liquid-Solid (SLS) method has the advantages of cheap equipment, simple operation process, can effectively control the stoichiometric ratio of multi-component materials, and can pro...

Claims

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Application Information

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IPC IPC(8): B22F9/24B82Y40/00B82Y30/00
Inventor 陈铭刘培培杜江
Owner YANGZHOU UNIV
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