Silicon is an important semiconducting and photovoltaic material. It is also widely used for chemical and metallurgical applications. The rapid growth in the demand of solar photovoltaic (PV) cell results in the shortage of solar-grade (SOG) silicon feedstock. Expensive scrap electronic grade (EG) silicon (99.9999999% Si) is commonly used as the raw material to produce SOG-Si (99.9999% Si). Many researchers have reported that relatively inexpensive metallurgical grade (MG) silicon (98-99% Si) can be used as an alternative raw material for refining of MG-silicon to produce SOG-Si.
Proceedings of the 4th High Temperature Processing Symposium (HTP 2012), Hawthorn, Victoria, Australia, 06-07 February 2012 / M. Akbar Rhamdhani, Geoffrey Brooks, Md Saiful Islam and Shabnam Sabah (eds.),