Bayer Aktiengesellschaft

Martin Abels

Peter Woditsch

Ingo Schwirtlich

Gunter Kurz

Berthold Brazel

The process for producing silicon suitable for use in solar cells is improved by reacting a gaseous silicon compound with aluminum wherein a finely dispersed molten surface of pure aluminum or an aluminum/silicon alloy is intensively contacted with the gaseous silicon compound during the reaction.

Process for the production of solar silicon

A process for the production of silicon comprising reacting a gaseous silicon compound of the formula SiH.sub.n X.sub.4-n, wherein X is halogen and n is 0 to 3, with aluminum in solid state. The resulting silicon can be highly pure and will have the particle size of the aluminum feed, making it especially useful for production of solar cells.

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Krefeld, Germany

Martin Abels