Solar Silicon WafersMonocrystalline and Multicrystalline solar silicon wafers for PV manufacturers
Targray Solar Silicon Wafers for Photovoltaics Manufacturing
Targray offers a full range of solar silicon wafers for solar cell production. Through our extensive global partner network, we have access to a reliable supply of high quality solar wafers to support both your short and long term product requirements. Our high quality solar silicon wafers can be manufactured to your exact specifications, with custom options for thickness, geometry, bevel edge and more. Currently available standard sizes are:
- Monocrystalline solar wafers: 156.75 x 156.75 mm
- Multicrystalline solar wafers: 156.75 x 156.75 mm
Manufacturing Solutions for Solar Technology Developers
The Targray Solar Division is committed to helping photovoltaics manufacturers worldwide reduce their overall Cost/Wt. This begins with sourcing the highest quality solar wafers for solar cell fabrication and processing. Superior solar wafers will yield more efficient PV solar cells. The below table provides sample specifications for our latest line of solar silicon wafers. For additional details, or for information about custom wafers, please contact us.
|Conductivity Type||p-type / B dopant|
|Length of Side
||Square 156.75 ± 0.25mm|
|Resistivity||1 – 3 Ω-cm|
|Lifetime||≥ 5.2 μs|
|Oxygen Concentration||≤ 5.0E17 atoms/cm3|
|Carbon Concentration||≤ 5.0E17 atoms/cm3|
|Thickness||200 μm ± 20 μm|
|TTV||≤ 30 μm|
|BOW||≤ 100 μm; ≤ 50 μm|
|Saw Marks||≤ 15.0 μm|
|Chips||L ≤ 0.5 mm, D ≤ 0.3 mm, No more than 1 per wafer.|
|Crystal Growth Method||Czochralski|
|Surface Crystal Orientation||<100> ± 3o|
|Resistivity||1-3||Ω – cm|
|Minority Carrier Lifetime||≥20 μsec|
|Oxygen Concentration||≤9E + 17 atoms/cm3|
|Carbon Concentration||≤5E + 16 atoms/cm3|
|Wafer Thickness||180 ± 20 μm|
|Angle Between Adjacent Sides
||90o ± 0.3o|
|TTV||≤ 30 μm|
|BOW||≤ 50 μm|
|Saw Marks||≤ 15 μm|
Targray guarantees its monocrystalline & multicrystalline solar silicon wafer materials will meet the quoted specifications.
Targray offers high quality mono- and multicrystalline solar cells with 2 & 3 bus bars
Targray adhesives include solar-grade AG paste for solar silicon cells.
Our Mono- & Multicrystalline ingots are manufactured from pure virgin polysilicon.
+1 (514) 695-8095
To speak with a Targray representative.