METHOD AND APPARATUS FOR HEAT TREATING THE WAFER-SHAPED BASE MATERIAL OF A SOLAR CELL, IN PARTICULAR A CRYSTALLINE OR POLYCRYSTALLINE SILICON SOLAR CELL

摘要

A method and an apparatus for heat treating a wafer-shaped base material of a solar cell, in particular of a crystalline or polycrystalline silicon solar cell, wherein the device comprises at least one laser light source (4a, 4b).