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Method for preparing chemical bath of tin antimony sulfur film

A technology of chemical bath and thin film, which is applied in the field of chemical bath preparation of tin-antimony-sulfur thin film, can solve the problems of high equipment cost and increased material preparation cost, and achieve low production cost, environmental compatibility and great process flexibility Effect

Active Publication Date: 2019-03-29
广州鲸盾网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the preparation method of tin-antimony-sulfur thin film is mainly the thermal evaporation method, which is simple, but requires large-scale vacuum equipment, and the equipment cost is high, thus increasing the cost of material preparation

Method used

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  • Method for preparing chemical bath of tin antimony sulfur film
  • Method for preparing chemical bath of tin antimony sulfur film
  • Method for preparing chemical bath of tin antimony sulfur film

Examples

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Embodiment 1

[0038] A chemical bath preparation method for a tin-antimony-sulfur thin film, comprising the steps of:

[0039] The soda-lime glass substrate was ultrasonically cleaned with soapy water, acetone, absolute ethanol, and deionized water in sequence, and a SnS film with a thickness of 10 nm was pre-deposited on the substrate by a continuous ion adsorption process. Add 0.15mol / L thioacetamide to deionized water as sulfur source solution, dissolve 0.015mol / L antimony trichloride, 0.035mol / L stannous chloride, and 0.1mol / L trisodium citrate in deionized water The ionized water is the metal source solution; after the sulfur source solution is mixed with the metal source solution, hydrochloric acid is added to adjust the pH value to 5.5, and the color of the solution is light white at this time. Stand still for 3 minutes, pour into the pre-prepared deposition beaker, then put the beaker to be deposited into a constant temperature water bath with a pre-adjusted temperature of 70°C for ...

Embodiment 2

[0041] A chemical bath preparation method for a tin-antimony-sulfur thin film, comprising the steps of:

[0042] The soda-lime glass substrate was ultrasonically cleaned with soapy water, acetone, absolute ethanol, and deionized water in sequence, and a SnS film with a thickness of 15 nm was pre-deposited on the substrate by a continuous ion adsorption process. Add 0.1mol / L thioacetamide to deionized water as sulfur source solution, dissolve 0.01mol / L antimony trichloride, 0.02mol / L stannous chloride, and 0.05mol / L trisodium citrate in deionized water The ionized water is the metal source solution; after the sulfur source solution and the metal source solution are mixed, hydrochloric acid is added to adjust the pH value to 4, and the color of the solution is light white at this time. Stand still for 3 minutes, pour into the pre-prepared deposition beaker, then put the beaker to be deposited into a constant temperature water bath with a pre-adjusted temperature of 80°C for depo...

Embodiment 3

[0044] A chemical bath preparation method for a tin-antimony-sulfur thin film, comprising the steps of:

[0045] The soda-lime glass substrate was ultrasonically cleaned with soapy water, acetone, absolute ethanol, and deionized water in sequence, and a SnS film with a thickness of 5 nm was pre-deposited on the substrate by a continuous ion adsorption process. Add 0.2mol / L thioacetamide to deionized water as sulfur source solution, dissolve 0.03mol / L antimony trichloride, 0.04mol / L stannous chloride, and 0.2mol / L trisodium citrate in deionized water The ionized water is the metal source solution; after the sulfur source solution and the metal source solution are mixed, ammonia water is added to adjust the pH value to 6, and the color of the solution is light white at this time. Let it stand for 5 minutes, pour it into the pre-prepared deposition beaker, and then put the beaker to be deposited into a constant temperature water bath with a pre-adjusted temperature of 50°C for de...

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Abstract

The invention relates to a method for preparing chemical bath of a tin antimony sulfur film. The method comprises the following steps: (a) substrate cleaning and pretreatment; (b) chemical bath solution (a mixed solution containing Sn<2+>, S<2->, Sb<3+>); (c) depositing a tin antimony sulfur film in a water bath using a chemical bath method; (d) annealing to prepare a high-quality tin antimony sulfur film under a nitrogen atmosphere or a sulfur atmosphere. The low-cost chemical bath method to prepare the tin antimony sulfur film does not need expensive equipment and raw materials are easy to obtain. The method is simple in operation, and is suitable for substrate in any shapes and properties, and each process can be controlled to prepare the tin antimony sulfur film with excellent photoelectric property, and the method lays a foundation for preparation of low-cost and high-efficiency solar cell absorbing layer film materials.

Description

technical field [0001] The invention relates to the field of photoelectric functional materials, in particular to a chemical bath preparation method for tin-antimony-sulfur thin films. Background technique [0002] The supply of renewable energy sources (solar, wind, hydropower from biofuels, geothermal energy and ocean energy) accounts for 14% of the world's total energy needs. Renewable energy is clean and inexhaustible. The two most important points in the concept of renewable energy are: first: the source of renewable energy should be huge and unlimited; second: in terms of overall technical efficiency, there must be obvious security. Taking these two points as the criterion, the source of solar energy is endless and stable, and its technology is fully compatible with existing electric power technology, and at the same time presents a high level of security. This shows that it has greater potential in technical application than other renewable energy sources, which ful...

Claims

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Application Information

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IPC IPC(8): H01L21/02H01L31/18
CPCH01L21/0242H01L21/02422H01L21/02568H01L21/02628H01L21/02661H01L31/18Y02P70/50
Inventor 王威张桂湘丁玲王江图咸贵阳王梦琴
Owner 广州鲸盾网络科技有限公司
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