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A double-doped copper-zinc-tin-sulfur thin film and its preparation method

A copper-zinc-tin-sulfur, double-doped technology, applied in the direction of final product manufacturing, sustainable manufacturing/processing, climate sustainability, etc., can solve the problems of small particles and many defects of copper-zinc-tin-sulfur film

Active Publication Date: 2021-05-11
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a double-doped copper-zinc-tin-sulfur thin film and a preparation method thereof, which solves the problem of too small particles and many defects of the existing copper-zinc-tin-sulfur thin film

Method used

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  • A double-doped copper-zinc-tin-sulfur thin film and its preparation method
  • A double-doped copper-zinc-tin-sulfur thin film and its preparation method
  • A double-doped copper-zinc-tin-sulfur thin film and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] 1) Convert 7.66×10 -4 mol / L copper acetate, 4.82×10 -4 mol / L zinc acetate, 2.41×10 -4 mol / L manganese acetate and 6.23×10 -4 mol / L stannous chloride was dissolved in 4.0mL of organic solvent ethylene glycol, placed in an ultrasonic generator, and subjected to ultrasonic treatment at 60°C for 2 hours to obtain a milky solution, which was recorded as the first solution;

[0062] 2) Convert 2.55×10 -4 mol / L silver nitrate and 3.06×10 -3 mol / L thiourea was added to 5.0mL organic solvent ethylene glycol and 1.0mL acetylacetone mixed solution, placed in an ultrasonic generator, at 60°C, ultrasonically treated for 2 hours to obtain a transparent and clear solution, which was recorded as the second solution;

[0063] 3) Mix the first solution and the second solution, place them in an ultrasonic generator at a temperature of 60° C., and perform ultrasonic treatment for 15 minutes to obtain a stable precursor sol containing silver, copper, manganese, zinc, tin, and sulfur;

...

Embodiment 2

[0069] 1) Convert 7.66×10 -4 mol / L copper acetate, 2.41×10 -4 mol / L zinc acetate, 4.82×10 -4 mol / L manganese acetate and 6.23×10 -4 mol / L stannous chloride was dissolved in 4.0mL of organic solvent ethylene glycol, placed in an ultrasonic generator, and subjected to ultrasonic treatment for 2 hours at a temperature of 80°C to obtain a milky solution, which was recorded as the first solution;

[0070] 2) Convert 2.55×10 -4 mol / L silver nitrate and 3.06×10 -3 mol / L thiourea was added to 5.0mL organic solvent ethylene glycol and 1.0mL acetylacetone mixed solution, placed in an ultrasonic generator, at a temperature of 80°C, ultrasonically treated for 2 hours to obtain a transparent and clear solution, which was recorded as the second solution;

[0071] 3) Mix the first solution and the second solution, place them in an ultrasonic generator at a temperature of 80° C., and perform ultrasonic treatment for 15 minutes to obtain a stable precursor sol containing silver, copper, ma...

Embodiment 3

[0077] 1) Convert 3.83×10 -4 mol / L copper acetate, 7.23×10 -4 mol / L manganese acetate and 6.23×10 -4 mol / L stannous chloride was dissolved in 4.0mL of organic solvent ethylene glycol, placed in an ultrasonic generator, and subjected to ultrasonic treatment for 2 hours at a temperature of 80°C to obtain a milky solution, which was recorded as the first solution;

[0078] 2) Convert 5.10×10 -4 mol / L silver nitrate and 3.06×10 -3 mol / L thiourea was added to 5.0mL organic solvent ethylene glycol and 1.0mL acetylacetone mixed solution, placed in an ultrasonic generator, at a temperature of 80°C, ultrasonically treated for 2 hours to obtain a transparent and clear solution, which was recorded as the second solution;

[0079] 3) Mix the first solution and the second solution, place them in an ultrasonic generator at a temperature of 80° C., and perform ultrasonic treatment for 15 minutes to obtain a stable precursor sol containing silver, copper, manganese, tin, and sulfur;

[00...

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Abstract

The invention relates to the technical field of photoelectric materials, in particular to a double-doped copper-zinc-tin-sulfur thin film and a preparation method thereof. The invention discloses a method for preparing a double-doped copper-zinc-tin-sulfur thin film. The preparation method is simple, and three times of ultrasonic treatment are used in the preparation process, so that each reaction raw material can be completely dissolved into a uniform solution, thereby preparing a precursor sol The system is more stable and can be preserved for a long time. In addition, the copper-zinc-tin-sulfur film prepared by the preparation method is a double-doped copper-zinc-tin-sulfur film. The thin film has few defects, large particles, high crystallinity and high absorption coefficient, and solves the problem that the existing copper-zinc-tin-sulfur thin film has too small particles and many defects.

Description

technical field [0001] The invention relates to the technical field of photoelectric materials, in particular to a double-doped copper-zinc-tin-sulfur thin film and a preparation method thereof. Background technique [0002] With the prominence of energy issues and the improvement of human awareness of environmental protection, solar energy has gradually gained attention, which has triggered people's exploration of solar cell technology. The constituent elements of the absorbing layer of copper-zinc-tin-sulfur solar cells are non-toxic, environmentally friendly and rich in content, and the manufacturing cost is low, making copper-zinc-tin-sulfur solar cells a current research hotspot. However, the conversion efficiency of copper-zinc-tin-sulfur solar cells remains at a low level, because the particles of the copper-zinc-tin-sulfur thin film prepared by the prior art are too small, and there are copper-zinc antisite defects, copper vacancy defects, zinc vacancy defects and co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/032H01L31/18
CPCY02P70/50
Inventor 许佳雄邱磊庄楚楠谢致薇杨元政
Owner GUANGDONG UNIV OF TECH
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