What is physical vacuum smelting?

Physical method solar cell polysilicon

What is physical vacuum smelting?

admin on January 13, 2022 0 Comments • Tags: #impuritiesinsilicon #inductionheating #principleofelectromagneticinduction

This method is carried out under vacuum conditions, and the effect of impurity removal is achieved through several processes of degassing, decomposition, volatilization and deoxidation. At a temperature slightly higher than the melting point of silicon (1500°C), the Mo gas pressure of silicon is 0.5Pa, and at this time, impurities with a Mo gas pressure … Read More