Method for preparing solar energy absorbing layer material Cu2ZnSnS4 by hydrothermal synthesis

A technology of solar energy absorption and hydrothermal synthesis, applied in chemical instruments and methods, tin compounds, inorganic chemistry, etc., can solve the problems of difficulty in large-scale production, difficult control of components, high equipment requirements, and achieve good application prospects, low price, Simple to use effects

A technology of solar energy absorption and hydrothermal synthesis, applied in chemical instruments and methods, tin compounds, inorganic chemistry, etc., can solve the problems of difficulty in large-scale production, difficult control of components, high equipment requirements, and achieve good application prospects, low price, Simple to use effects

CN101844797AInactive Publication Date: 2010-09-29DONGHUA UNIV
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  • Method for preparing solar energy absorbing layer material Cu2ZnSnS4 by hydrothermal synthesis
  • Method for preparing solar energy absorbing layer material Cu2ZnSnS4 by hydrothermal synthesis
  • Method for preparing solar energy absorbing layer material Cu2ZnSnS4 by hydrothermal synthesis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (A) Weigh 0.5mmol CuCl 2 2H 2 O, 0.25 mmol ZnSO 4 .7H 2 O, 0.25 mmol SnCl 2 .2H 2 O, put in a round bottom flask, add 10mL ethylene glycol, stir, and dissolve each substance. (B) Weigh 3mmol of Na 2 S, dissolved in 10mL ethylene glycol, ultrasonically dissolved. Pour B into A with stirring, continue to stir for half an hour, transfer to a high-pressure reactor, 180 ° C, 12 hours. After the reaction, centrifuge. to get Cu 2 ZnSnS 4 .

Embodiment 2

[0025] (A) Weigh 1mmol CuCl 2 2H 2 O, 0.5 mmol ZnSO 4 .7H 2 O, 0.5 mmol SnCl 2 .2H 2 O, put in a round bottom flask, add 10mL ethylene glycol, stir, and dissolve each substance. (B) Weigh 2mmol of Na 2 S, dissolved in 10mL ethylene glycol, ultrasonically dissolved. Pour B into A with stirring, continue to stir for half an hour, transfer to a high-pressure reactor, 200 ° C, 24 hours. After the reaction, centrifuge. to get Cu 2 ZnSnS 4 .

Embodiment 3

[0027] (A) Weigh 0.5mmol CuCl 2 2H 2 O, 0.25 mmol ZnSO 4 .7H 2 O, 0.25 mmol SnCl 2 .2H 2 O, put in a round bottom flask, add 10mL ethylene glycol, stir, and dissolve each substance. (B) Weigh 3mmol of Na 2 S, dissolved in 10mL ethylene glycol, ultrasonically dissolved. Pour B into A with stirring, continue to stir for half an hour, transfer to a high-pressure reactor, 220 ° C, 24 hours. After the reaction, centrifuge. to get Cu 2 ZnSnS 4 .

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Abstract

The invention relates to a method for preparing a solar energy absorbing layer material Cu2ZnSnS4 by hydrothermal synthesis. The method comprises the following steps of: (1) proportioning the salts of Cu<2+>, Zn<2+> and Sn<2+> in a mole ratio of 2:1:1, placing the salts in a round-bottom flask, then adding ethylene glycol into the salts to prepare solution A, and stirring the solution for dissolution at the room temperature; (2) proportioning solid Na2S in an amount which is 1 to 5 times the total amount of the Cu<2+>, Zn<2+> and Sn<2+> materials, adding the ethylene glycol into the solid Na2S to prepare solution B, and performing ultrasonic dissolution; and (3) under a stirring condition, adding the solution B into the solution A, transferring the mixed solution into an autoclave for reaction, and performing centrifugal separation to obtain a Cu2ZnSnS4 nanosphere. The method has the advantages of low requirement on equipment, relatively simpler operation, easily-controlled components, large-scale production and providing good application prospect for the preparation of an efficient and low-cost solar cell.

Description

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Claims

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Application Information

Patent Timeline
29 Sep 2010
Publication
CN101844797A