| 20090074650 | METHOD FOR THE PRODUCTION OF SILICON SUITABLE FOR SOLAR PURPOSES - An exemplary method of production of solar grade silicon is disclosed. The method comprises melting the silicon and directionally solidifying the melt. The method additionally comprises forming a crystallization front during the directional solidification, the front having the shape of at least a section of a spherical surface. Also disclosed are a silicon wafer and a solar cell in accordance with an exemplary embodiment of the present invention. | 03-19-2009 |
