Solar Ingot
An ingot is a semiconductor material (e.g. Silicon) that is melted and cast into a shape suitable for further processing.
We use our high-purity polysilicon as well as purchased and recycled polysilicon to manufacture our ingots. We test and categorize recycled silicon raw materials based on their technical properties. These recycled silicon raw materials then undergo mechanical grinding and chemical cleaning before they are mixed using our proprietary formula.
Our ability to mix the materials in the right proportion is critical to the production of high-quality silicon ingots.
A solar ingot is a chunk or oblong block of silicon. The most prevalent bulk material for solar cells is crystalline silicon also known as solar grade silicon. Mono-crystalline silicon is grown from a single silicon crystal into cylindrical solar ingots which is then cut into solar wafers that make up solar cells.
A solar cell is also called photovoltaic cell or photoelectric cell as it uses the photovoltaic effect to convert the energy of light directly into electricity.
Other materials currently used to make photovoltaic solar cells other than mono-crystalline silicon include polycrystalline silicon, amorphous silicon, cadmium telluride and copper indium selnide/sulfide.
Poly crystalline silicon is also a common material used to make solar cells which is made by carefully cooling molten silicon into larger squares solar ingots and sawing into solar wafers.
Poly crystalline silicon has lower efficiency than mono-crystalline silicon.
Bulk silicon is separated into multiple categories according to crystallinity and crystal size in the resulting solar ingot, ribbon or solar wafer.
Ribbon silicon is made by drawing molten silicon into thin ribbons. This type has an even lower efficiency than poly-crystalline silicon wafers.
