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Tin(IV) Sulfide

Chemical Formula: SnS2
CAS: 1315-01-1

Tin(IV) sulfide (SnS2) is a golden-yellow hexagonal crystal that has attracted much attention in the field of materials science due to its unique crystal structure and excellent optoelectronic properties. As one of the important binary metal sulfides, SnS2 is widely used in optoelectronic devices, semiconductor thin films, photocatalysis, and other fields, and is a key raw material in the research and development of many advanced materials.
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Tin(IV) Sulfide Basic Properties

  • Molecular Formula: SnS2

  • Appearance: Gold-yellow hexagonal crystal

  • Molecular Weight: 182.84

  • Melting Point: Decomposes at 600℃ [HAW93]

  • Boiling Point: 600°C

  • Density: 4,5 g/cm3

  • Vapor Pressure: 0Pa at 25℃

  • Storage Conditions: Inert gas environment

  • Solubility: Insoluble H2O, dilute mineral acids; soluble aqua regia, alkali hydroxide solutions

  • Purity: 3N (99.9%) / 4N (99.99%) / 5N (99.999%) and so on

  • Package Information: 1kg aluminum foil bags / 25kg fiber drums/custom OEM packaging

Tin(IV) Sulfide Key Features

Excellent light absorption performance

Tin(iv) sulfide has a moderate band gap (approximately 2.2 eV) and exhibits good absorption capacity in the visible light region, making it an important candidate for photocatalysis and photovoltaic materials.

Layered structure

Its CdI2-type layered crystal structure allows for smoother electron migration between layers, improving the efficiency of photogenerated electron-hole separation, making it suitable for photoelectric conversion and sensors.

Non-toxic

As a relatively environmentally friendly metal sulfide, SnS2 has no obvious toxicity and is more likely to meet the requirements of environmentally friendly research and development compared to materials containing heavy metals such as cadmium.

High process compatibility

Tin(iv) sulfide can be used to prepare thin films or nanostructures through solvothermal methods, chemical vapor deposition (CVD), thermal decomposition, etc., making it suitable for a variety of industrial and scientific research scenarios.

Tin(IV) Sulfide Main Applications

Semiconductor thin films and electronic devices

Tin(iv) sulfide has application research value in thin film transistors (TFTs), sensing elements, and field-effect transistors. The two-dimensional materials prepared from it can be applied to flexible electronics.

Coatings and lubricating materials

The layered structure provides excellent lamellar slip properties, making it suitable as a composite additive for solid lubricants to improve wear resistance and friction reduction.

Photodetectors / Photovoltaics

SnS2's moderate bandgap and high light absorption make it widely used in photodetectors, solar cells, and photoresistors, and it is especially suitable for developing low-cost thin-film solar materials.

Photocatalysis

Tin(iv) sulfide can achieve high photocatalytic activity under visible light, and can be used for the degradation of organic pollutants, photoreduction reactions, catalyst composites, etc.

Precautions

  1. SnS2 may undergo photosensitivity reactions, and prolonged exposure to strong light can lead to structural changes and affect its photoelectric properties. Therefore, it should be stored in a light-protected environment.

  2. It may decompose at high temperatures, so it should be used in a normal temperature environment and kept away from heat sources.

  3. It may be oxidized and decomposed in a strong oxidizing environment, and should be stored separately from substances such as nitric acid and peroxides.

  4. If it comes into contact with skin or eyes, rinse immediately with plenty of water; if any discomfort occurs, consult a professional.

  5. Sulfide gases may be generated during operation due to heating and decomposition, so good ventilation is required and it is recommended to carry out the operation in a fume hood.

  6. During operation, powder particles may be inhaled. Masks and protective gloves should be worn, especially during large-scale operations.

FAQ

1. What types of optoelectronic devices is tin(iv) sulfide suitable for?

It is suitable for visible light photodetectors, thin-film solar cells, photosensitive devices, etc. Its band gap and light absorption advantages make it particularly suitable as an absorption layer or sensitizing layer material.


2. Can SnS2 be used in batteries? How does it perform?

It can be used as a negative electrode material in lithium-ion or sodium-ion batteries. Its layered structure can support ion intercalation, resulting in good theoretical capacity.


3. Does tin(iv) sulfide need to be stored in an inert atmosphere?

Generally, no. However, for high-purity research-grade products, inert atmosphere packaging can further improve stability to avoid the adsorption of oxygen or moisture.


4. How can tin(iv) sulfide be used to prepare thin films?

Thin films or nanostructures with different morphologies can be prepared by methods such as CVD, ALD, thermal decomposition, solvothermal methods, and electrochemical deposition.


5. Is tin(iv) sulfide environmentally friendly?

Compared to semiconductor materials containing cadmium and lead, SnS2 is a relatively environmentally friendly metal sulfide with low toxicity to humans, making it more suitable for green material research and development.


We are a professional Tin(IV) Sulfide supplier. For more information or to purchase Tin(IV) Sulfide(SnS2), please feel free to contact us via jomin@wolfabio.com.

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