Preparation method for solar battery materials with three-zone gap tin doped with copper, gallium and sulphur

A solar cell, tin doping technology, applied in the fields of nanotechnology, chemical instruments and methods, tin compounds, etc. for materials and surface science, can solve the problems of tin doping copper gallium sulfur without intermediate band gap, and avoid the Adverse effects, enhanced absorption, excellent potential effects

Inactive Publication Date: 2015-06-10
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no experimental research report on the preparation of mid-b

Method used

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  • Preparation method for solar battery materials with three-zone gap tin doped with copper, gallium and sulphur
  • Preparation method for solar battery materials with three-zone gap tin doped with copper, gallium and sulphur
  • Preparation method for solar battery materials with three-zone gap tin doped with copper, gallium and sulphur

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Experimental program
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Effect test

Embodiment 1

[0036] The solvothermal preparation steps of tin-doped copper-gallium-sulfur triple-bandgap solar cell materials are as follows:

[0037] (1) Dissolve the copper chloride of 0.8mmol in 40ml ethylene glycol solution, stir evenly and make it fully dissolve;

[0038] (2) Add 2mmol thiourea again, stir evenly to make it fully dissolve;

[0039] (3) Add 0.8 mmol of gallium chloride again, and stir evenly to make it fully dissolve;

[0040] (4) Add 0.04mmol tin tetrachloride again, stir to obtain a uniform reaction solution system;

[0041] (5) Transfer the reaction solution system to a 50ml polytetrafluoroethylene-lined reaction kettle, keep the temperature at 220° C. for 12 hours, and cool naturally to obtain a solvothermal product;

[0042] (6) The obtained solid product was dried in a vacuum oven at 80° C. for 6 hours to obtain the final product.

[0043] The XRD spectrum and partial enlarged view of the tin-doped copper-gallium sulfur flower-shaped microsphere product obtain...

Embodiment 2

[0053] The solvothermal preparation steps of tin-doped copper-gallium-sulfur triple-bandgap solar cell materials are as follows:

[0054] (1) Dissolve 0.8mmol of copper chloride in 40ml of ethylene glycol solution, stir evenly to make it fully dissolved; (2) add 1.6mmol thiourea again, stir evenly to make it fully dissolve;

[0055] (3) Add 0.8 mmol of gallium chloride again, and stir evenly to make it fully dissolve;

[0056] (4) Add 0.04mmol tin tetrachloride again, stir to obtain a uniform reaction solution system;

[0057] (5) Transfer the reaction solution system to a 50ml polytetrafluoroethylene-lined reaction kettle, keep the temperature at 220° C. for 12 hours, and cool naturally to obtain a solvothermal product;

[0058] (6) The obtained solid product was dried in a vacuum oven at 80° C. for 6 hours to obtain the final product.

Embodiment 3

[0060] The solvothermal preparation steps of tin-doped copper-gallium-sulfur triple-bandgap solar cell materials are as follows:

[0061] (1) Dissolve the copper chloride of 0.8mmol in 40ml ethylene glycol solution, stir evenly and make it fully dissolve;

[0062] (2) Add 2mmol thiourea again, stir evenly to make it fully dissolve;

[0063] (3) Add 0.8 mmol of gallium chloride again, and stir evenly to make it fully dissolve;

[0064] (4) Add 0.04mmol tin tetrachloride again, stir to obtain a uniform reaction solution system;

[0065] (5) Transfer the reaction solution system to a 50ml polytetrafluoroethylene-lined reaction kettle, keep the temperature at 210°C for 12h, and cool naturally to obtain a solvothermal product;

[0066] (6) The obtained solid product was dried in a vacuum oven at 80° C. for 6 hours to obtain the final product.

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Abstract

The invention discloses a preparation method for solar battery materials with three-zone gap tin doped with copper, gallium and sulphur. According to the preparation method for the solar battery materials with the three-zone gap tin doped with the copper, the gallium and the sulphur, copper chloride, gallium chloride, thiourea and stannic chloride are dissolved into ethylene glycol and then are mixed uniformly, a solvothermal synthesis reaction is conducted in a sealed steel-bushing teflon reaction still, then a solvothermal product is washed, filtered and dried, and a product is obtained. It is inferred from the growth mechanism that the preparation method for solar battery materials with the three-zone gap tin doped with the copper, the gallium and the sulphur is suitable for the preparation for the solar battery materials with other transmission metal elements including VIII ( Co, Fe, Ir, Ni, Pd, Rh ) doped with the three-zone gap tin. The obtained product is good in crystallinity, high in purity and uniform in morphology and distribution; an obvious ligh-induced switching effect is possessed, when there is no light, the dark current is nearly zero, and when there is light, the current intensity rises quickly; The preparation method for the solar battery materials with the three-zone gap tin doped with the copper, the gallium and the sulphur has the advantages that the preparation technology is simple, the repeatability is good, the cost is low, the controllability is strong, and the material usage rate is high; sulfidizing is not needed, the resultant temperature is low, and green and environmental protection are possessed.

Description

technical field [0001] The invention belongs to the technical field of photoelectric materials and new energy sources, and relates to a preparation method of a multi-bandgap solar cell absorbing material belonging to the third-generation solar cell materials, in particular to triple-gap tin (Sn) doped copper gallium sulfur (CuGaS 2 ) Solvothermal preparation method of solar cell materials. Background technique [0002] As the foundation of the national economy, the energy industry provides an important guarantee for the sustainable development of the social economy and people's healthy life. The depletion of fossil energy and the damage to the ecological environment make it urgent to study various renewable and environmentally friendly energy sources. Solar energy is favored by people because of its renewable, pollution-free, and large reserves. Providing low-cost and cost-effective solar cells is key for photovoltaic power generation applications. The primary way to achi...

Claims

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Application Information

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IPC IPC(8): C01G15/00B82Y30/00B82Y40/00
CPCC01G19/006C01P2002/70C01P2002/72C01P2002/82C01P2002/84C01P2004/03C01P2004/04C01P2004/30C01P2004/61
Inventor 杨穗牛广海吕鑫鑫曹洲钟建新易捷
Owner XIANGTAN UNIV
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