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A kind of preparation method of copper zinc tin sulfur, selenium powder

A technology of copper-zinc-tin-sulfur and copper-zinc-tin-selenium, which is applied in the field of preparation of copper-zinc-tin-sulfur and selenium powders, can solve problems such as unfavorable production efficiency and cost control, and achieve low prices, wide sources, and uniform powder components Effect

Inactive Publication Date: 2017-04-26
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the methods of the prior art, the radio frequency sputtering method, the laser pulse deposition method, and the thermal evaporation method all require expensive vacuum equipment, which is not conducive to the improvement of production efficiency and cost control, while the sol-gel vulcanization method, thermal injection method and other chemical The method uses toxic organic solvents and presents environmental concerns

Method used

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  • A kind of preparation method of copper zinc tin sulfur, selenium powder
  • A kind of preparation method of copper zinc tin sulfur, selenium powder
  • A kind of preparation method of copper zinc tin sulfur, selenium powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This example is a preparation example of preparing copper-zinc-tin-sulfur powder.

[0043] 1. First prepare copper-zinc-tin alloy powder, add 2.679g zinc powder to 200ml distilled water, ultrasonic for 15 minutes, vigorously stir for 15 minutes to form suspension A, then add 0.5ml concentrated hydrochloric acid to 100ml distilled water, then add 2.255 g stannous chloride dihydrate to form a transparent solution B, slowly add B to A, and complete the addition within 30 minutes. Then add 4.960g of copper sulfate pentahydrate to 100ml of distilled water to form copper sulfate solution C, then slowly add C, after the addition is complete, stir vigorously for half an hour, after suction filtration, dry in an oven at 80 degrees to obtain copper zinc tin powder body;

[0044] Another way to prepare copper-zinc-tin alloy powder is: add 2.679g of zinc powder to 200ml of distilled water, ultrasonic for 15 minutes, vigorously stirred for 15 minutes to form a suspension A, and the...

Embodiment 2

[0052] Embodiment 2: The present invention provides the following preparation examples of copper-zinc-tin-selenium powder.

[0053] 1. Preparation of copper-zinc-tin alloy powder

[0054] A kind of preparation method of copper-zinc-tin powder of the present invention is:

[0055] First, add 2.679g of zinc powder to 200ml of distilled water, ultrasonicate for 15 minutes, and stir vigorously for 15 minutes to form a suspension A, then add 0.5ml of concentrated hydrochloric acid to 100ml of distilled water, and then add 2.255g of stannous chloride dihydrate to form a transparent For solution B, slowly add B to A, and complete the addition within 30 minutes. Then add 4.960g of copper sulfate pentahydrate to 100ml of distilled water to form copper sulfate solution C, then slowly add C, after the addition is complete, stir vigorously for half an hour, after suction filtration, dry in an oven at 80 degrees to obtain copper zinc tin powder body.

[0056] The preparation method of a...

Embodiment 3

[0063] Embodiment 3: The present invention provides the following preparation examples of copper-zinc-tin-sulfur-selenide powder.

[0064] 1. Preparation of copper-zinc-tin alloy powder.

[0065] A kind of preparation method of copper-zinc-tin powder of the present invention is:

[0066] First, add 2.679g of zinc powder to 200ml of distilled water, ultrasonicate for 15 minutes, and stir vigorously for 15 minutes to form a suspension A, then add 0.5ml of concentrated hydrochloric acid to 100ml of distilled water, and then add 2.255g of stannous chloride dihydrate to form a transparent For solution B, slowly add B to A, and complete the addition within 30 minutes. Then add 4.960g of copper sulfate pentahydrate to 100ml of distilled water to form copper sulfate solution C, then slowly add C, after the addition is complete, stir vigorously for half an hour, after suction filtration, dry in an oven at 80 degrees to obtain copper zinc tin powder body.

[0067] The preparation met...

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Abstract

The invention discloses a preparation method for copper-zinc-stannum-sulfur powder, or copper-zinc-stannum-selenium powder or copper-zinc-stannum-sulfur-selenium powder, such as CuZnSnS4, CuZnSnSe4, and CuZnSn (SxSe4-x). According to the method, water soluble salt of copper, zinc and stannum is subjected to solution reaction to prepare copper-zinc-stannum powder, and then the obtained copper-zinc-stannum powder is reacted with sulfur, or selenium or sulfur and selenium to obtain the objective product. Raw materials used for the method are wide in source and low in price; the whole reparation technology is environmentally friendly and free of pollution; the prepared powder is homogeneous in component and free of impurity phases.

Description

technical field [0001] The present invention relates to a 2 -Ⅱ-Ⅲ-Ⅵ 4 The preparation method of various types of powder materials, especially copper-zinc-tin-sulfur or copper-zinc-tin-selenium or copper-zinc-tin-sulfur-selenium powder as new solar cell absorbing layer materials, new medium-temperature thermoelectric materials and visible light catalytic materials, such as : CuZnSnS 4 , CuZnSnSe 4 and CuZnSn (S x Se 4-x ) method of preparation. Background technique [0002] With the depletion of fossil energy and energy shortage, the conversion of solar energy into electric energy has gradually attracted people's attention. As a type of solar cell, thin-film solar cells have been extensively studied, especially copper indium gallium selenide (CIGS) thin-film solar cells, whose efficiency has reached 20%. However, due to the low abundance of indium in copper indium gallium selenide (CIGS) in the earth's crust, it faces the problem of scarce and expensive raw materials wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/0749C01B19/00C01G19/00
CPCC01B19/002C01G19/00H01L31/0326Y02E10/541
Inventor 秦勇吴巍炜窦伟
Owner LANZHOU UNIVERSITY
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