What is polysilicon vs silicon?
Polysilicon (polycrystalline silicon) and monocrystalline silicon (single-crystal silicon) are both forms of elemental silicon but differ fundamentally in their atomic structure. Monocrystalline silicon consists of a single, continuous crystal lattice where atoms are perfectly ordered throughout the entire structure . Polysilicon, in contrast, is composed of numerous small crystalline regions (grains) ranging from nanometers to micrometers in size. These grains are randomly oriented relative to each other and are separated by boundaries known as grain boundaries . While silicon refers broadly to the element (Si), "silicon" in electronics contexts often implies high-purity monocrystalline silicon used for wafers. Polysilicon is the purified raw material used to grow that monocrystalline silicon, or directly utilized in specific applications like solar cells and MEMS devices .
What is the price of polysilicon today?
| August 8th China's guiding price for solar-grade polysilicon | ||||
| name | Lowest Price | Highest Price | Average price | unit |
| N type dense material | 45 | 50 | 47.5 | Yuan/kg |
| N type mixed bag material | 43 | 48 | 45.5 | Yuan/kg |
| N-type granular silicon | 44 | 45 | 44.5 | Yuan/kg |
| P-type re-feeding | 33 | 34 | 33.5 | Yuan/kg |
| P type dense material | 31 | 32 | 31.5 | Yuan/kg |
| P-type cauliflower material | 29 | 30 | 29.5 | Yuan/kg |
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