What is polysilicon?

Polysilicon is a semiconductor material and the main raw material for solar cells and integrated circuit chips. It is formed from silicon raw material through a series of processing and treatment processes to form silicon wafers with a polycrystalline structure. Polycrystalline silicon has high thermal conductivity, excellent mechanical properties, and a relatively low price, making it widely used in the electronics industry.

The polysilicon production process can be divided into several main steps. First, silicon concentrate is extracted from silica rock and heated to a high temperature. Carbon is then added to produce gaseous silicon dichloride through a chemical reaction. The gaseous silicon dichloride is then chemically reduced to solid polycrystalline silicon through a chemical reaction. Finally, refining, crystal growth, and cutting are performed to produce finished polycrystalline silicon wafers.

Polycrystalline silicon has many advantageous properties, making it a key raw material for the manufacture of solar cells and integrated circuits. First, polycrystalline silicon exhibits excellent photovoltaic properties, effectively converting solar energy into electricity. Second, polycrystalline silicon also has high electrical and thermal conductivity, enabling it to effectively transfer electricity and dissipate heat when used in the manufacture of chips and photovoltaic cells. Furthermore, polycrystalline silicon has high mechanical strength and can withstand significant mechanical stress, ensuring the material's stability during production and use.

With the rapid development of the new energy industry, the demand for polycrystalline silicon is also increasing. Currently, many countries around the world are vigorously promoting the development of solar power, which requires large quantities of polysilicon as the raw material for solar cells. Furthermore, with the increasing popularity and upgrading of electronic products, the demand for integrated circuit chips is also increasing, which in turn provides a driving force for the continued growth of the polysilicon market.

In general, polysilicon is an important semiconductor material with broad application prospects in both the solar energy and electronics industries. With the continuous development of the new energy industry and the upgrading of electronic products, the market demand for polysilicon will continue to increase. Therefore, the polysilicon industry has enormous development potential and will become a key component of the future new energy and electronics industries.