polycrystalline silicon

Polycrystalline silicon, also known as polysilicon, is a material made from many small silicon crystals fused together. It is a high-purity form of silicon used mainly in the production of solar panels and semiconductor devices. Its structure consists of numerous tiny crystal grains, which makes it less uniform than single-crystal silicon but more cost-effective to produce. Polycrystalline silicon is valued for its electrical properties and is a key component in converting sunlight into electricity in solar energy systems. Despite minor imperfections, it performs effectively in solar panels and electronic applications.