Blende structure Cu2MnSnS4 powder material and liquid phase preparation method thereof

A powder material and sphalerite technology, applied in chemical instruments and methods, inorganic chemistry, manganese compounds, etc., can solve the problems of difficult control of copper, manganese, tin and sulfur powder material components, high preparation costs, environmental pollution, etc., to achieve The effect of low cost, high production efficiency, and simple operation of the preparation process

Active Publication Date: 2018-06-22
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a kind of Cu that can be used as thin-film solar cell absorption layer 2 MnSnS 4 A method for preparing powd

Method used

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  • Blende structure Cu2MnSnS4 powder material and liquid phase preparation method thereof
  • Blende structure Cu2MnSnS4 powder material and liquid phase preparation method thereof
  • Blende structure Cu2MnSnS4 powder material and liquid phase preparation method thereof

Examples

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Example Embodiment

[0028] Example 1:

[0029] Choline chloride and urea are mixed uniformly, heated to 80° C., stirred for 1 hour, and cooled to room temperature to obtain a deep eutectic solution. The molar ratio of choline chloride to solvent is 1:2. Weigh 4 mmol CuCl 2 • 2H 2 O, 2 mmol MnCl 2 • 4H 2 O, 2mmol SnCl 4 • 5H 2 Put O, 8 mmol thiourea into a round-bottomed three-necked flask, add 35 ml of deep eutectic solution, and let stand for 3-5 minutes to obtain a uniform milky white solution. Fill in nitrogen as protective gas, and place the round-bottomed three-necked flask at a constant temperature Heat to 200°C in an oil bath and keep it for 4 hours, then cool to room temperature, wash with absolute ethanol and deionized water 3 times in sequence, then filter, dry in a drying box at 60°C for 6 hours to obtain a black powder .

Example Embodiment

[0030] Example 2:

[0031] Take choline chloride and urea and mix them uniformly, heat to 80°C, stir and react for 1 h, and cool to room temperature to obtain a deep eutectic solution. The molar ratio of choline chloride to solvent is 1:3. Weigh 4 mmol CuCl 2 • 2H 2 O, 2 mmol MnCl 2 • 4H 2 O, 2mmol SnCl 4 • 5H 2 Put O, 8 mmol thiourea into a round-bottomed three-necked flask, add 35 ml of deep eutectic solution, and let stand for 3-5 minutes to obtain a uniform milky white solution. Fill in nitrogen as protective gas, and place the round-bottomed three-necked flask at a constant temperature Heat to 200°C in an oil bath and keep it for 4 hours, then cool to room temperature, wash with absolute ethanol and deionized water 3 times in sequence, then filter, dry in a drying box at 60°C for 6 hours to obtain a black powder .

Example Embodiment

[0032] Example 3:

[0033] Choline chloride and urea are mixed uniformly, heated to 80°C, stirred for 1 h, and cooled to room temperature to obtain a deep eutectic solution. The molar ratio of choline chloride to solvent is 1:2. Weigh 4 mmol CuCl 2 • 2H 2 O, 2 mmol MnCl 2 • 4H 2 O, 2mmol SnCl 4 • 5H 2 Put O, 8 mmol thiourea into a round-bottomed three-necked flask, add 35 ml of deep eutectic solution, and let stand for 3-5 minutes to obtain a uniform milky white solution. Fill in nitrogen as protective gas, and place the round-bottomed three-necked flask at a constant temperature Heat to 180°C in an oil bath and keep it for 6 hours, then cool to room temperature, wash with absolute ethanol and deionized water 3 times in sequence, then filter, dry in a drying oven at 60°C for 4 hours to obtain a black powder .

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Abstract

The invention discloses a blende structure Cu2MnSnS4 powder material for a solar cell and a liquid phase preparation method thereof. The method comprises the following steps that raw materials are weighed according to the mol ratio of CuCl2.2H2O to MnCl2.4H2O to SnCl4.5H2O to thiourea being (1.5 to 2) to 1 to (0.8 to1) to (4 to 5); then, the raw materials are put into a round-bottom flask with three ports; next, a DES (deep eutectic solution) prepared from choline chloride and urea is added as a reaction solvent; nitrogen gas is introduced as protection gas; the mixture is put in a constant temperature oil bath to be heated to 180 to 200 DEG C; the temperature is maintained for 2 to 24h; absolute ethyl alcohol and deionized water are used for sequentially washing samples; then, filtering and drying are performed to obtain black powder. The liquid phase preparation method disclosed by the invention has the advantages that the Cu2MnSnS4 powder material is safely and efficiently producedunder the low-temperature ordinary pressure conditions; the equipment requirements are low; the technological process is simple; green and environment-friendly effects are achieved.

Description

technical field [0001] The invention belongs to the technical field of preparation of solar cell absorbing layer materials, and relates to a zinc blende structure Cu 2 MnSnS 4 Powder material and method for its liquid phase preparation. Background technique [0002] With the gradual consumption of traditional energy sources and the deterioration of the ecological environment, the development of efficient and reliable solar cells has become an important way to solve energy and environmental problems. At present, the mainstream product in the photovoltaic market is still silicon solar cells, but there are defects such as serious pollution, high energy consumption, and high production costs in the preparation process of this type of cells, which restricts its development. Therefore, the study of new green, high-efficiency and low-cost solar cells has become an important topic for future energy development. [0003] Among many solar cells, CuIn 1-x Ga x Se(CIGS) thin-film s...

Claims

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Application Information

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IPC IPC(8): C01G45/00
CPCC01G45/006C01P2002/30C01P2002/72C01P2002/82C01P2004/03
Inventor 周继承吴亮
Owner CENT SOUTH UNIV
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