Preparation method for antimony sulfide film

An antimony sulfide and thin film technology, applied in ion implantation plating, metal material coating process, coating and other directions, can solve the problems of waste of raw materials, long and complicated preparation process, high cost, etc., and avoid environmental pollution problems and processes. The process is simple and efficient, and the effect of reducing the preparation cost

Active Publication Date: 2019-03-22
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of these preparation methods are as follows: 1) The preparation process is lengthy and complex, with many influencing factors and poor repeatability; 2) The antimony sulfide film composition segregation is serious, and it needs to be further passed through excessive sulfur powder or poisonous hydrogen sulfide gas Annealing treatment will inevitably cause environmental pollution and waste of raw materials; 3) high-purity antimony sulfide (≥99.99%) material preparation is required, and the cost is expensive
However, the conventional vacuum coating has a high degree of vacuum, it is difficult to control the doping concentration of impurity elements, and it is often over-doped, which is not conducive to the coating of stibnite. Due to the problems of impurities and low sulfur in stibnite, no suitable simple one has been found. Preparation process Directly prepare good antimony sulfide thin films from minerals

Method used

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  • Preparation method for antimony sulfide film
  • Preparation method for antimony sulfide film
  • Preparation method for antimony sulfide film

Examples

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Effect test

Embodiment 1

[0034] (1) Cut the copper foil used in batteries such as sodium-ion batteries, lithium-ion batteries, and solid-state thin-film batteries into a rectangular substrate of 10mm*20mm. At the same time, pre-cut a piece of white glass into a rectangle of 10mm*20mm (for detection). The rectangular white glass slices were ultrasonically cleaned with deionized water, glass cleaner, acetone, alcohol, and deionized water for 15 minutes, and then dried with an air compressor.

[0035] (2) Weigh 0.40 g of stibnite powder into a porcelain boat, and then put the porcelain boat and the stibnite powder into the middle of the temperature zone of the tubular annealing furnace.

[0036] (3) Put the required deposition film copper foil substrate and white glass into the suction end of the glass tube in the dual temperature zone tube furnace, and place it at the furnace mouth of the dual temperature zone tube furnace. Connect the glass tube and the mechanical pump with a flange, and turn on the m...

Embodiment 2

[0045] (1) The thickness is 1.1mm, resistance ≤ 14Ω / m 2 1. ITO conductive glass with a light transmittance ≥ 90% (Wuhan Jingge Solar Technology Co., Ltd.), pre-cut into 2 pieces of square substrate sheets of 50mm*50mm. The square slices were ultrasonically cleaned with deionized water, glass cleaner, acetone, alcohol, and deionized water for 15 minutes, and then dried with an air compressor for use.

[0046] (2) A 50nm CdS electron transport layer was deposited on the ITO conductive glass sheet to be used by a chemical water bath method.

[0047] Specifically, 160 milliliters of deionized water was added to a 250 milliliter beaker, and then 0.03 mol / liter of cadmium sulfide solution, 1.5 mol / liter of thiourea and 14.5 milliliters of 25% ammonia were added to the beaker, Then put the beaker with the ITO conductive glass sheet into a heat-collecting constant temperature heating magnetic stirrer and conduct a water bath at 80°C. After 3-6 minutes, the solution turns orange, and ...

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Abstract

The invention discloses a preparation method for an antimony sulfide film. Raw materials for preparing the antimony sulfide film are stibnite which is simply screened. According to the preparation method, melting point differences of antimony sulfide in the stibnite from other impurities are used, tubular annealing furnace coating and annealing one-step treatment is used in cooperation, and the film which can be on a par with a film made of a raw material being high-purity antimony sulfide (with the purity higher than or equal to 99.999%) is prepared. In the process of preparing the antimony sulfide film, the preparation method can avoid the environmental pollution problem generated in the process of preparing the high-purity antimony sulfide raw material, can solve the problems of impurities and insufficient sulfur in the process of preparing the antimony sulfide film through the stibnite, is simple and efficient in technological process, greatly reduces the preparation cost, is stable, reliable, wide in application range and suitable for most substrates requiring coating with antimony sulfide, and is an energy-saving, high-efficiency, green and environment-friendly method.

Description

technical field [0001] The invention relates to the technical field of battery thin film manufacturing, in particular to a preparation method of an antimony sulfide thin film battery material. Background technique [0002] China is a country with large antimony resources in the world. There are more than 120 kinds of antimony minerals identified at present, and 70 kinds are more common, but only more than 10 kinds have industrial utilization value. antimony ore. China is the world's most important antimony-producing country, with reserves ranking first in the world. There are 111 antimony producing areas, especially the tin mines in Hunan, known as the "world's antimony capital". In addition, there are antimony deposits in Guizhou, Guangxi, Guangdong, Yunnan and other provinces. [0003] The main component of stibnite is antimony sulfide (Sb 2 S 3 ). Antimony sulfide is a V-VI group sulfide semiconductor, which belongs to the orthorhombic crystal system, and the space g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/24C23C14/58
CPCC23C14/0623C23C14/24C23C14/5806
Inventor 刘芳洋吴杰韩璐曾溢宇孙振陈佳蒋良兴贾明刘业翔
Owner CENT SOUTH UNIV
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