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A main challenge in today´s solar cell industry is to lower the production costs of solar cells. This can be achieved by applying laser technologies like the laser doping which is for example used to create a selective emitter, having a higher efficiency as a consequence. Due to the laser irradiation of the silicon, the irradiated area melts selectively and recrystallizes afterwards. This recrystallization...
Laser doping in industrial crystalline solar cells creates a selective emitter and thereby enhances the efficiency. Nevertheless, if not done carefully, the irradiation of the semiconductor introduces defects. We have suppressed defect formation by using a laser beam that is focused to a line with a width of only several micrometers. The maximal line width for a defect free recrystallization, however,...
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