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Polysilicon

Polycrystalline silicon is a form of elemental silicon. When the molten elemental silicon is solidified under the condition of supercooling, the silicon atoms are arranged into many crystal nuclei in the form of diamond lattice. If these crystal nuclei grow into grains with different crystal plane orientations, these grains will combine to crystallize into polysilicon.

Silicon powder

Silicon powder, also known as condensed silica fume, the main component is SiO2, the content of up to 85 ~ 95%. Fineness: The particles of silica powder are extremely fine, with an average particle size of 0.1~0.15. Refractoriness of SiO2, the content of up to 85 ~ 95%.