Polysilicon

Polycrystalline silicon is a material composed of small monocrystalline silicon. It is different from monocrystalline silicon used in electronics and solar cells, as well as amorphous silicon used in thin-film devices and solar cells.

Polycrystalline silicon is a direct raw material for producing monocrystalline silicon, and is the electronic information foundation material for contemporary semiconductor devices such as artificial intelligence, automatic control, information processing, and optoelectronic conversion. Known as the cornerstone of the microelectronics building. Monocrystalline and polycrystalline silicon also play a huge role in the utilization of solar energy.

Production method

The production technology of polycrystalline silicon mainly includes improved Siemens method and silane method.