Electrochemical Behavior of Silicon Species in Cryolite Melt

Electrodeposition of Si from cryolite based melts is a possible solution for mass production of solar grade silicon. The deposition potential of Si on the candidate cathode, such as graphite, is fundamental information that needs to be measured and applied to restrict the co–deposition of impurities. In this study this potential was measured using cyclic voltammetry. As the activity of SiO2 in the electrolyte affects the deposition potential, …