Electromagnetic Levitation Refining of Silicon–Iron Alloys for Generation of Solar Grade Silicon

At present, expensive semiconductor grade silicon (SEG-Si) is used for the manufacture of cells to convert solar energy into electricity. This results in a high cost for photovoltaic electricity compared to electricity derived from conventional sources. The processing of inexpensive metallurgical silicon, or ferrosilicon alloys, is a potentially economical refining route to produce photovoltaic silicon. With phosphorus being one of the most …