Verfahren zur Herstellung von hochreinem Silizium

摘要

The invention relates to a method for producing high-purity silicon, especially for photovoltaic purposes and preferably for using in the production of wafers, according to which silane is thermally decomposed in order to obtain silicon. The inventive method is characterised in that gaseous silane is injected into a silicon melt and, following the injection of the silane, the melt is cast and solidified.