Preparation method of pattern and size controllable CuInSe2 nanoparticles

A nanoparticle and morphology technology, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., to achieve the effects of controllable product size and shape, simple preparation process, and high selectivity

Active Publication Date: 2013-04-10
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the currently known CuInSe 2 In the preparation of nanoparticles, there is no literature report that CuInSe can be synthesized by only one method 2 The size

Method used

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  • Preparation method of pattern and size controllable CuInSe2 nanoparticles
  • Preparation method of pattern and size controllable CuInSe2 nanoparticles
  • Preparation method of pattern and size controllable CuInSe2 nanoparticles

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0022] Example 1

[0023] A CuInSe 2 The shape and size controllable preparation method of nanoparticles includes the following steps:

[0024] (1) Add 1.5 mmol of indium trichloride and 1.5 mmol of cuprous chloride to 5 mL of oleylamine, heat and stir to dissolve indium trichloride and cuprous chloride, and prepare indium trichloride and cuprous chloride. Cuprous oleylamine solution;

[0025] (2) Add 3 mmol of elemental selenium powder to 30 mL of oleylamine, stir and heat up to dissolve the elemental selenium powder;

[0026] (3) injecting the solution obtained in step (1) into the solution obtained in step (2);

[0027] (4) After the solution obtained in step (3) is heated to 260 °C, the reaction is performed for 60 min;

[0028] (5) After the reaction is completed, the product is washed and collected by centrifugation to obtain CuInSe 2 Nanoparticles;

[0029] (6) The morphology of the sample was characterized, and the scanning electron microscope observation showed ...

Example Embodiment

[0030] Example 2

[0031] A CuInSe 2 The shape and size controllable preparation method of nanoparticles includes the following steps:

[0032] (1) Add 0.5 mmol of indium trichloride and 0.5 mmol of cuprous chloride to 5 mL of oleylamine, heat and stir to dissolve indium trichloride and cuprous chloride, and prepare indium trichloride and cuprous chloride. Cuprous oleylamine solution;

[0033] (2) Add 1 mmol elemental selenium powder to 30 mL of oleylamine, stir and heat up to dissolve the elemental selenium powder;

[0034] (3) injecting the solution obtained in step (1) into the solution obtained in step (2);

[0035] (4) After the solution obtained in step (3) was heated to 245°C, the reaction was carried out for 180 min;

[0036] (5) After the reaction is completed, the product is washed and collected by centrifugation to obtain CuInSe 2 Nanoparticles;

[0037] (6) The morphology of the sample was characterized, and the scanning electron microscope observation showed...

Example Embodiment

[0038] Example 3

[0039] A CuInSe 2 The shape and size controllable preparation method of nanoparticles includes the following steps:

[0040] (1) Add 0.25 mmol of indium trichloride and 0.25 mmol of cuprous chloride to 5 mL of oleylamine, heat and stir to dissolve indium trichloride and cuprous chloride, and prepare indium trichloride and cuprous chloride. Cuprous oleylamine solution;

[0041] (2) Add 0.5 mmol elemental selenium powder to 30 mL of oleylamine, stir and heat up to above 200°C to dissolve the elemental selenium powder;

[0042] (3) injecting the solution obtained in step (1) into the solution obtained in step (2), and cooling to 70°C;

[0043] (4) After the solution obtained in step (3) was rapidly heated to 230°C, the reaction was carried out for 60 min;

[0044] (5) After the reaction is completed, the product is washed and collected by centrifugation to obtain CuInSe 2 Nanoparticles;

[0045] (6) The morphology and phase state of the sample were charac...

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Abstract

The invention discloses a preparation method of pattern and size controllable CuInSe2 nanoparticles, and relates to CuInSe2 nanoparticles. The method comprises the following steps that indium trichloride and cuprous chloride are dissolved in an oleylamine solvent, heated, stirred and prepared to form an oleylamine solution of indium trichloride and cuprous chloride; elemental selenium powder is added to the oleylamine solution, stirred and heated, and dissolved; the solution obtained in Step (1) is injected into a solution obtained in Step (2), heated to 190-290 DEG C and reacted for 10-240min; after the reaction is accomplished, a product is cleaned, centrifuged and collected; and the CuInSe2 nanoparticles are obtained. The method can selectively synthesize the CuInSe2 nanoparticles with different sizes and patterns through one step, is low in cost and environment-friendly, and facilitates large-scale production; the sizes and the patterns of the product are controllable; and the repeatability is good.

Description

technical field [0001] The present invention relates to CuInSe 2 Nanoparticles, specifically a CuInSe 2 Nanoparticle morphology and size controllable preparation method. Background technique [0002] Copper indium selenide solar cells are considered to be the most promising and market-competitive type of solar cells in the future due to their high absorption constant, high conversion efficiency, low cost and abundant raw material sources. In the complex structure of copper indium selenide solar cells, copper indium selenide (CuInSe 2 ) The thin film layer is the core material of the battery. Traditional preparation of CuInSe 2 The methods of thin film layers mainly include co-evaporation method, sputtering method, laser induced synthesis method, metal selenide prefabricated layer method, etc. Most of these methods require expensive equipment, and CuInSe 2 The chemical composition of the film layer is difficult to control, and even the use of toxic reagent H is required ...

Claims

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Application Information

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IPC IPC(8): C01B19/00B82Y30/00
Inventor 陈慧玉徐春菊刘亚青赵贵哲柳学义
Owner ZHONGBEI UNIV
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