China Good Price High Purity Silane Sih4 Gas

Product Description

Silane refers to a chemical compound with the formula SiH4, consisting of one silicon atom bonded to four hydrogen atoms. It is the simplest and most common member of the silane family. Here are some key points about silane:

1. Structure: Silane has a tetrahedral structure, with the silicon atom at the center and four hydrogen atoms bonded to it. The molecule is similar in shape to methane (CH4).

2. Properties: Silane is a colorless, flammable gas with a pungent odor. It is less dense than air and can form explosive mixtures when exposed to air or other oxidizing agents. Silane is highly reactive and can spontaneously ignite in the presence of heat or certain catalysts.

3. Production: Silane can be produced through several methods, including the reaction of metallurgical-grade silicon with hydrogen or the hydrolysis of silicon tetrachloride (SiCl4). Industrial-scale production of silane involves the reaction of silicon with hydrogen at high temperatures.

4. Applications: Silane has various applications in different industries:

   • Semiconductor Industry: Silane is used as a precursor gas in the production of silicon-based materials, such as silicon wafers and thin-film transistors. It is an important source of silicon for the deposition of silicon films in microelectronics.

   • Solar Energy: Silane is utilized in the manufacturing of silicon-based solar cells. It serves as a precursor gas for the deposition of amorphous and polycrystalline silicon layers, which are essential components of solar panels.

   • Chemical Industry: Silane derivatives find applications as coupling agents, adhesion promoters, and surface modifiers in the formulation of coatings, adhesives, and sealants. They can improve the bonding between different materials or enhance the performance of surface treatments.

   • Gas Detection: Silane is also used in gas detection systems as it reacts with metals, such as palladium, to produce a measurable change in electrical conductivity. This property is utilized in gas sensors for detecting the presence of silane gas.

It's important to note that silane is a hazardous and potentially dangerous substance. Proper precautions, including safe handling, storage, and usage practices, should be followed to ensure personal safety and prevent accidents.