Monocrystalline Silicon Wafers PV Module
According your require, we can produce customized silicon wafers, no matter what diameter, thickness or type. We expect to service you.
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Description
Monocrystalline silicon (mono-Si) wafers are widely used in the production of photovoltaic (PV) modules, which are the building blocks of solar panels. These wafers are made of a single crystal of high-purity silicon, which allows for the efficient conversion of sunlight into electricity.
To manufacture mono-Si wafers for PV modules, the Czochralski process is used to grow a single crystal of silicon from a seed crystal. The resulting crystal is then sliced into very thin wafers, typically around 180-240 micrometers thick.
After slicing, the wafers undergo several processing steps, including cleaning and polishing, as well as doping to create the desired electrical properties. The wafers are then assembled into PV modules using various techniques, such as wire bonding or soldering.
Mono-Si wafers offer several advantages over other types of silicon wafers, such as polycrystalline (multi-Si) wafers. Mono-Si wafers have higher efficiency and better performance in low-light conditions, as well as longer lifetimes and lower degradation rates. They are also more aesthetically pleasing due to their uniform black color, making them ideal for use in residential and commercial applications.
Specification
| Parameter | Value |
|---|---|
| Wafer diameter | 156 mm (6 inches) |
| Wafer thickness | 200 µm |
| Orientation | <100> or <111> |
| Resistivity | 1-10 Ω-cm |
| Dopant concentration | N-type or P-type |
| Surface roughness (Ra) | <0.5 nm |
| Front surface coating | Anti-reflective coating |
| Back surface coating | Passivation layer |
| Warpage | <50 µm |
| Bow | <40 µm |
| Total thickness variation (TTV) | <10 µm |
| Edge exclusion zone | 1-2 mm |
| Carrier lifetime | >1 ms |
| Maximum operating temperature | 85°C |
Populiarus Žymos: monocrystalline silicon wafers pv module
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