用冷等离子体结合湿法冶金制备太阳级硅材料

Solar-grade silicon material prepared by combining cold plasma with hydrometallurgy

太阳级硅材料是制造廉价太阳电池的理想材料。冷等离子体提纯与湿法冶金是制造太阳级硅材料的两种重要方法。它们各有优缺点 ,使之结合起来则可以取长补短 ,大大提高硅材料的提纯效果。文中制备了纯度达 5mol/L的硅材料 。

The cost of terrestrial solar cells can be lowed substantially if solar cells were fabricated from solar-grade silicon. Cold plasma purification and hydrometallurgy, having their own merits, were two of the most important methods to prepare low-cost solar-grade silicon materials. 99.999% Si powder which can be used for solar cell were obtained by combining cold plasma purification with hydrometallurgy.