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Targray is a leading supplier of monocrystalline and multicrystalline solar silicon ingot crystals and bricks for commercial PV manufacturers. Committed to meeting the unique needs of each customer, we also work with our manufacturing partners to develop custom silicon ingot solutions for solar producers and technology developers with highly specific project requirements.

In both monocrystalline and multicrystalline crystallization processes, feedstock quality is a critically important issue. Focused on minimizing soft costs and increasing operational efficiency for PV manufacturers, we work closely with partners to ensure the polysilicon feedstock used to produce our silicon ingots is of the highest achievable purity and consistency.

Crystal Type Monocrystalline
Dopant p-type (Boron)
Crystal Orientation <100>+/-3o
Bulk Lifetime >10 μs
Resistivity 0.5 – 3 Ω – cms
3 – 6
Carbon Concentration <8.0 x 1016 atoms/cm3
Oxygen Concentration <1.0 x 1018 atoms/cm3
Growth Method CZ
Dimensions 165 +/- 0.5 mm
200 +/- 0.5
Ingot Segment Length ≥200 mm

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Crystal Structure Multi-Crystalline Cast Silicon Ingots
Casting Method Directional Solidification System (DSS)
Nominal Dimensions
690 mm x 690 mm x 238 mm
840 mm x 840 mm x 260 mm
Nominal Weight
265 kg
400 kg
Conduction Type P-Type, boron doped
Specific Resistivity 0.5 – 3.0 Ω-cm
Lifetime >1.0 μs
Oxygen Concentration Interstitial <8 x 1017 atoms/cm3
Carbon Concentration Substitutional <2 x 1016 atoms/cm3

Working closely with our supply partners and organizations including U.S-based SEIA, we help solar manufacturers and project developers worldwide increase their solar cell and module efficiency. Contact us today to learn more.

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