SILICON CRYSTALS, IN PARTICULAR FOR SOLAR CELLS AND METHOD FOR THE PRODUCTION THEREOF

摘要

The invention relates to a method for producing a silicon crystal, wherein said crystal is produced using the Czochralski method (CZ method) from a quartz crucible. The invention also relates to the use of one base-doped silicon crystal produced using the Cz method and comprising at least one doping agent from the main chemical groups III and/or V. In order to economically produce a silicon crystal having suitable base doping, said crystal is produced according to the Czochralski method from a quartz crucible, whereby the melt is provided with at least one doping agent from the main chemical groups III and/or V for targeted base doping. The melt and silicon material and/or doping agents are post-charged in such a way that the difference in crystal doping remains within predefined limits.