Monocrystalline ingot is made from high-purity silicon, which is then sawn into thin wafers. One process used to produce monocrystalline ingots is known as Czochralski Growth method.
Monocrystalline wafer,Solar Cells,China solar cells
Monocrystalline ingot is made from high-purity silicon, which is then sawn into thin wafers. One process used to produce monocrystalline ingots is known as Czochralski Growth method, which was invented by the Polish chemist, Jan Czochralski. In this process, a cylindrical ingot of high-purity is formed by pulling a seed crystal from melted polycrystalline silicon chunk.Quasi-squared ingots are prepared into wire saw machines, which are cut into very thin wafers with the help of modern wire-cutting technology.After cleaning and intensive final checks, the monocrystalline wafers form the basis of the production of solar cells. Physical semiconductor quality of wafer determines the attainable efficiency in the manufacturing of solar cells
Product Features of Monocrystalline wafer,China solar cells:
Conductivity type：P
Lifetime: �0μs
BOW：≤35 μm
Resistivity: 0.5�����0ٷcm
Oxygen concentration �1×1018atom/cm3
Carbon concentration �5×1016atom/cm3
Dimension: 125mmX125mm±0.5mm ,156mmX156mm±0.5mm
Thickness: 200μm ,220μm, 240μm(±20μm)
TTV：≤ 50 μm
Squareness Angle Variety : ï¼?.6mm
Squareness Angle: 90°±0.25°
Crystal direction : �00�br/>
