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Method for synthesizing copper indium diselenide nanosheet through ion exchange method

An ion exchange method, copper indium selenium technology, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve problems such as difficulty in obtaining uniform CIS, and achieve simple preparation methods, good product crystallinity, yield and purity high effect

Active Publication Date: 2013-02-13
指南者品牌管理(苏州)有限公司
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Problems solved by technology

[0004] At present, the preparation methods of CIS battery thin films mainly include vacuum evaporation method, selenization method, electrodeposition method, chemical vapor deposition method, etc. The vacuum evaporation method uses their own evaporation sources to evaporate copper, indium and selenium; the selenization method is to use H 2 Selenization of Se laminated films, but this method is difficult to obtain uniform CIS, so it is challenging to prepare CIS nanomaterials with controllable morphology

Method used

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  • Method for synthesizing copper indium diselenide nanosheet through ion exchange method
  • Method for synthesizing copper indium diselenide nanosheet through ion exchange method
  • Method for synthesizing copper indium diselenide nanosheet through ion exchange method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Use an electronic balance to weigh 0.142g (0.4mmol) indium bromide and 0.1038g (0.6mmol) sodium selenite respectively in a 25ml reaction kettle;

[0021] (2) Use a 5ml pipette, a 2ml pipette, and a 10ml pipette to measure 5ml, 2ml, and 12ml of diethylenetriamine, hydrazine hydrate, and deionized water into a 50ml beaker, and stir with a glass rod for 2 minutes to make it well mixed;

[0022] (3) Use a pipette to measure 15ml of the mixed solution in (2) into the reaction kettle in (1), and stir with a magnet with a diameter of 1cm at 600rpm for 10min to fully dissolve and mix evenly;

[0023] (4) Seal the reactor and place it in an oven at 180°C for 3 days, then cool it down to room temperature naturally, wash it with absolute ethanol for 5 times, and dry it in a vacuum oven at 60°C to obtain yellow In 2 Se 3 (DETA) 0.5 nanosheets; repeat the above process to get a sufficient amount of In 2 Se 3 (DETA) 0.5 Nanosheets;

[0024] (5) Weigh the yellow In obtained...

Embodiment 2

[0030] (1) Use an electronic balance to weigh 0.142g (0.4mmol) indium bromide and 0.1038g (0.6mmol) sodium selenite respectively in a 25ml reaction kettle;

[0031] (2) Use a 5ml pipette, a 2ml pipette, and a 10ml pipette to measure 5ml, 2ml, and 12ml of diethylenetriamine, hydrazine hydrate, and deionized water into a 50ml beaker, and stir with a glass rod for 2 minutes to make it well mixed;

[0032](3) Use a pipette to measure 15ml of the mixed solution in (2) into the reaction kettle in (1), and stir with a magnet with a diameter of 1cm at 600rpm for 10min to fully dissolve and mix evenly;

[0033] (4) Seal the reactor and place it in an oven at 180°C for 3 days, then cool it down to room temperature naturally, wash it with absolute ethanol for 5 times, and dry it in a vacuum oven at 60°C to obtain yellow In 2 Se 3 (DETA) 0.5 nanosheets; repeat the above process to get a sufficient amount of In 2 Se 3 (DETA) 0.5 Nanosheets;

[0034] (5) Weigh the yellow In obtained ...

Embodiment 3

[0036] (1) Use an electronic balance to weigh 0.142g (0.4mmol) indium bromide and 0.1038g (0.6mmol) sodium selenite respectively in a 25ml reaction kettle;

[0037] (2) Use a 5ml pipette, a 2ml pipette, and a 10ml pipette to measure 5ml, 2ml, and 12ml of diethylenetriamine, hydrazine hydrate, and deionized water into a 50ml beaker, and stir with a glass rod for 2 minutes to make it well mixed;

[0038] (3) Use a pipette to measure 15ml of the mixed solution in (2) into the reaction kettle in (1), and stir with a magnet with a diameter of 1cm at 600rpm for 10min to fully dissolve and mix evenly;

[0039] (4) Seal the reactor and place it in an oven at 180°C for 3 days, then cool it down to room temperature naturally, wash it with absolute ethanol for 5 times, and dry it in a vacuum oven at 60°C to obtain yellow In 2 Se 3 (DETA) 0.5 nanosheets; repeat the above process to get a sufficient amount of In 2 Se 3 (DETA) 0.5 Nanosheets;

[0040] (5) Weigh the yellow In obtained...

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Abstract

The invention belongs to the technical field of synthesis of nano-optoelectronic material, relates to a preparation method for a copper indium diselenide (CuInSe2) nanometer material, and in particular relates to a method for synthesizing a copper indium diselenide nanosheet through an ion exchange method. The method comprises the following steps of: synthesizing an In2Se3 (DETA) 0.5 precursor in a reaction kettle by adopting indium bromide and sodium selenite as reactants, and diethylenetriamine, hydrazine hydrate and deionized water as solvents; and by adopting the precursor powder and copper salt as the reactants, and glycol as the solvent, carrying out solvent thermal reaction in the reaction kettle to obtain the copper indium diselenide (CuInSe2) nanometer material. The indium diselenide nanosheet prepared by the method provided by the invention is the mesoporous material of which the average length is 3 micrometers and the width is 1.5 micrometers; the mesoporous material is provided with a plurality of pores; each nanosheet contains three elements which are respectively copper, indium and diselenide; and each element is uniformly distributed in the whole nanosheet. The method has the advantages of high reaction reproducibility, mild reaction condition, simple preparation method, low cost, high controllability, high product crystallinity, high output and purity, and is green and environment-friendly, and is expected for being used for mass production.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic nanomaterial synthesis, and relates to copper indium selenide (CuInSe) 2 ) method for preparing nanomaterials, in particular to a method for synthesizing copper indium selenium nanosheets by ion exchange. Background technique [0002] Petroleum and coal, as important fossil energy sources, are non-renewable resources. With the continuous depletion of fossil fuels such as coal and oil, vigorously developing new energy and renewable energy is the only way for human sustainable development. Solar energy is an inexhaustible renewable energy source for human beings. It is a clean energy source and will not produce any environmental pollution. Among the effective utilization of solar energy, solar photovoltaic utilization is the fastest growing and most promising research field in recent years. In order to make more effective use of sunlight, solar cells have been researched and developed. Ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/00B82Y30/00
Inventor 施伟东刘裴于帅范伟强
Owner 指南者品牌管理(苏州)有限公司
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