Solar Grade Polycrystalline Silicon
Polycrystalline silicon ingot, Polycrystalline silicon scrap, Solar grade polycrystalline silicon
- Molecular Formula: Si
- Quality Standard: GB/T 25074-2017
Polycrystalline Silicon technical data:
Purity > 99.99%
Donor impurity concentration ≤ 0.35ppba
Acceptor impurity concentration ≤ 0.15ppba
Oxygen concentration ≤ 1.8 × 1015 atoms/cm3
Carbon concentration ≤ 2.8 × 1015 atoms/cm3
Minority carrier lifetime ≥ 800 μ s
Linear size 3-120mm
Polycrystalline silicon material surface is free of color spots, discoloration, visible pollutants, carbon heads, metals, or other impurities.