Polycrystalline Silicon Procurement Solutions for Manufacturers
Working collaboratively with our supply partners and organizations including U.S-based SEIA, we are focused on helping solar manufacturers and project developers worldwide increase the efficiency of their products while minimizing soft costs. Our polysilicon solutions are supported by flexible PV procurement programs designed to help businesses lower soft costs, unlock value and accelerate growth while creating a more resilient solar supply chain.
Raw Polysilicon Grades Available
Our silicon feedstock- derived products come in various formats, each which multiple sizing options available:
- High-Purity Solar Grade
- Polycrystalline Silicon Chunks
- Polycrystalline Silicon Chips
- Granular Polycrystalline Silicon
- Secondary-grade polysilicon
- Silicon powder
- Silicon carbon ends
- Discolored silicon
- Recycled Polysilicon
- Silicon pot scraps
- Silicon brick tops & sides
- Silicon ingot tops & tails
Characteristics | Inspection Method | Unit | Value | |
---|---|---|---|---|
Specifications | ||||
Bulk Element Concentration | Acceptors (B, AL) | LT-FTPL / ASTM 1389 – 00 | ppba | <2 |
Donors (P, As, Sb) | LT-FTPL / ASTM 1389 – 00 | ppba | <1 | |
Carbon | LT-FTPL / ASTM 1389 – 00 | ppma | <1 | |
Total Metals (Fe, Cu, Ni, Cr, Zn, Na) | NAA | ppbw | <20 | |
Surface Metal Concentration | Fe | CP-MS, GF-AAS | ppbw | <10 |
Cu | ppbw | <1 | ||
Ni | ppbw | <1 | ||
Cr | ppbw | <1 | ||
Zn | ppbw | <2 | ||
Na | ppbw | <6 |