Study of interaction of a plasma jet with the silicon melt surface under the conditions of its high turbulence

• Published in: 2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) pp. 1 - 5
• Main Authors: Karabanov, Sergey M., Suvorov, Dmitriy V., Tarabrin, Dmitriy Yu, Slivkin, E. V., Korotchenko, Vladimir A., Vlasov, Alexander N., Belyakov, Oleg, Karabanov, Andrey S., Dshkunyan, Valery
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-06-2017
• Subjects: feedstock; Impurities; Mathematical model; Purification; Silicon; Surface treatment
• DOI: 10.1109/EEEIC.2017.7977457

The paper presents the research results of interaction of inert gas (argon) plasma jet containing chemically active impurity vapors with the surface of silicon melt under the conditions of its high turbulence to determine the optimal conditions for purification of silicon for solar cells. The interconnection between the plasma parameters (current, power) and the rate of surface mass transfer of the silicon melt is established. It has been found that under the conditions of the melt high turbulence the most efficient removal of impurities from silicon melt surface takes place. The research is carried out by mathematical modeling using COMSOL Multiphysics and Matlab software.