The main raw material of solar cells is silicon, just like semiconductor silicon wafers, which are divided into monocrystalline silicon, polycrystalline silicon and amorphous silicon. Especially high-purity silicon material.

SGS provides testing services for polysilicon chunks, wafers, blue tape/dies, and silica powder.

• Silicon crystal raw material purity analysis (ICP-MS method)
• Silicon crystal raw material purity analysis (GD-MS method)
• Analysis of trace carbon (C) and oxygen (O) content in silicon crystal raw materials
• Analysis of trace impure metal elements in silicon crystal raw materials
• Wafer surface roughness analysis
• Analysis of impurities on the wafer surface (ball method)
• Surface impedance value
• Silicon crystal material and silicon wafer purity inspection service