With the rapid development of the photovoltaic industry, the demand for polysilicon from solar cells has grown faster than the development of semiconductor polysilicon. It is expected that by 2008, the demand for solar polysilicon will exceed that of electronic grade polysilicon. With the growth of integrated circuits, the production of silicon wafers and the development of the solar cell industry have greatly promoted the growth of polysilicon materials. Polycrystalline silicon can also produce different types of solar cells to convert solar energy into electrical energy. The product is widely used in aerospace, aviation, urban construction, transportation, communications and other fields. The end use of polysilicon is mainly to produce integrated circuits, discrete devices and solar cells. At present, the mainstream solar cells are silicon solar cells. 88% of the solar cells are bulk silicon solar cells. These bulk silicon solar cells, whether monocrystalline silicon solar cells or polycrystalline silicon solar cells, are initially made of polycrystalline silicon and polycrystalline silicon. The industry has a very high degree of relevance to the downstream electronic information industry and solar photovoltaic industry. Therefore, the development of the downstream electronic information industry and solar cell industry is the main force driving the substantial increase in the output of polysilicon materials.