c.REG Regeneration Furnace
After first exposure to light mono-crystalline p-type solar cells might suffer performance losses due to light induced degradation (LID). This effect is ascribed to recombination active boron oxygen (B-O) complexes in the wafer bulk that reduce conversion efficiency by up to 6%.
To passivate B-O-defects centrotherm developed a Regeneration process and equipment that is applied directly after fast firing, after sorting or even before
module manufacturing. The belt furnace c.REG potentially reduces LID to less than 1%. The Regeneration process chamber is designed in a modular concept matching different requirements of wafer material.
- Reduction of LID by up to 90%
- Modular design allows matching to specific wafer requirements
- Integrated belt transfer handling
- Solar cell regeneration
- Passivation of B-O-defects