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Polycrystalline Silicon

Recycling of Polysilicon/Mono Compacte/Mono Cauliflower/PCL-NCS-0/PCS-NCC/WACKER/TOKUYAMA/MITSUBISHI

The polysilicon feedstock – large rods, usually broken into chunks of specific sizes and packaged in clean rooms before shipment – is directly cast into multicrystalline ingots or submitted to a recrystallization process to grow single crystal boules. The boules are then sliced into thin silicon wafers and used for the production of solar cells, integrated circuits and other semiconductor devices.

Polycrystalline Silicon for solar energy applications includes p-type and n-type silicon. Most silicon-based PV solar cells are produced from polycrystalline silicon with single crystal systems the next most common. Silicon Metal is also available as single crystal, amorphous silicon, disc, granules, ingot, pellets, pieces, powder , rod, sputtering target, wire, and other forms and custom shapes. Ultra high purity and high purity forms also include submicron powder and nanoscale powder.


UrbanMines purchases and recycles a variety of polysilicon blocks, bars, chips, chunks and qualified materials to semiconductor ingots or wafers producers, R&D centers, equipment manufacturers at China. China domestic presence allow us to offer services such as inspection, purchase, sorting, re-packing, shipment from site, and organize the necessary logistics to purchase and ship quickly the materials to our factory. Please don’t be hesitated contact us for further information and details.

 

Classification: Cleaning-Free

Product: Monocrystalline Silicon Compacted Materials

Size: 5-10mm

Characteristics: Silicon blocks , of which quality indicators are in line with contractual requirements. The appearance and surface of the materials are compact and smooth. There maybe cracks with depths below 3 mm but no interlayers exist.

 

Classification: Cleaning-Free

Product: Monocrystalline Silicon Compacted Materials

Size: 8-50mm

Characteristics: Silicon blocks or bars, of which quality indicators are in line with contractual requirements. The appearance and surface of the materials are compact and smooth. There maybe cracks with depths below 3 mm but no interlayers exist.

 

Classification: Cleaning-Free

Product: Monocrystalline Silicon Compacted Materials

Size: 50-120mm

Characteristics: Silicon blocks , of which quality indicators are in line with contractual requirements. The appearance and surface of the materials are compact and smooth. There maybe cracks with depths below 3 mm but no interlayers exist.

 

Classification: Cleaning-Free Cleaning Necessary

Product: Monocrystalline Silicon Cauliflower Materials      

Size: 50-120mm

Characteristics: Cauliflower-shaped polysilicon material. Cauliflower form and surface attach the polycrystalline silicon raw material of oxide.  “Cauliflower” silicon particles are likely formed by aggregation of smaller silicon nanoparticles and are in an intermediate state in the evolution toward large crystalline particles. These “cauliflower” silicon particles consist of nanodomains of crystalline and amorphous silicon (a-Si) of which the latter exhibits photoluminescence. The surface of the material is quite clean after being washed, no oxide or other impurities remain in the gaps, cauliflower-shaped materials are removed thoroughly, production requirements of ingot casting in a furnace or crystal pulling can be met under a standard procedure.

 

Classification: Cleaning-Free

Product: Monocrystalline Silicon Coral Materials  

Size: 8-50mm

Characteristics: Silicon blocks. For materials with appearance and surface that are neither compact nor smooth or in which there are cracks with depths of above 3mmt if the quality of such materials is in line with contractual requirementst such materials shall be classified as coral materials regardless of ratios.

 

Classification: Cleaning-Free

Product: Monocrystalline Silicon Coral Materials         

Size: 50-120mm

Characteristics: Silicon blocks. For materials with appearance and surface that are neither compact nor smooth or in which there are cracks with depths of above 3mmt if the quality of such materials is in line with contractual requirementst such materials shall be classified as coral materials regardless of ratios.

 

Classification: Cleaning-Free

 

Product: Polycrystalline Silicoon PCL-NCS-0  WACKER         

Size: 0

 

Characteristics: As the quality standard of WACKER

 

Classification: Cleaning Necessary

 

Product: Polycrystalline Silicoon PCS-NCC   WACKER    

  

Size: 1-400mm

 

Characteristics: As the quality standard of WACKER

 

Classification: Cleaning Necessary

 

Product: Polycrystalline Silicoon PCS-NCD      WACKER      

  

Size: 1-400mm

 

Characteristics: As the quality standard of WACKER

 

Classification: Cleaning Necessary

 

Product: Polycrystalline Silicoon PCL-NC0       WACKER      

 

Size: 30-400mm

 

Characteristics: As the quality standard of WACKER

 

Classification: Cleaning Necessary

 

Product: Polycrystalline Silicon TOKUYAMA     

      

Size: 30-120mm

 

Characteristics: As the quality standard of TOKUYAMA

 

Classification: Cleaning Necessary

 

Product: Polycrystalline Silicon MITSUBISHI      

    

Size: 5-50mm

 

Characteristics: As the quality standard of MITSUBISHI

 

Classification: Cleaning Necessary

 

Product: Polycrystalline Silicon Bars    

      

Size: 200-300mm

 

Characteristics: As the quality standard of MITSUBISHI

 

 

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Polysilicon Scrap Recycling of Polysilicon/Mono Compacte/Mono Cauliflower/PCL-NCS-0/PCS-NCC/WACKER/TOKUYAMA/MITSUBISHI
The polysilicon feedstock – large rods, usually broken into chunks of specific sizes and packaged in clean rooms before shipment – is directly cast into multicrystalline ingots or submitted to a recrystallization process to grow single crystal boules. The boules are then sliced into thin silicon wafers and used for the production of solar cells, integrated circuits and other semiconductor devices. Polycrystalline Silicon for solar energy applications includes p-type and n-type silicon. Most silicon-based PV solar cells are produced from polycrystalline silicon with single crystal systems the next most common. Silicon Metal is also available as single crystal, amorphous silicon, disc, granules, ingot, pellets, pieces, powder , rod, sputtering target, wire, and other forms and custom shapes. Ultra high purity and high purity forms also include submicron powder and nanoscale powder.
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