The wafers pass through several chemical baths to remove microscopic damage from their surface. We coat the wafers to obtain a negative-conducting film on the surface. Afterwards an additional film is applied to the material so more light can penetrate the wafers. Front and back contacts are then printed on the wafers. Finally, the printed-on contact material is burnt into the wafer in the furnace. We carefully check the finished cell for efficiency, electrical and visual characteristics. It is classified on the basis of the results. Our film demonstrates the individual steps.
How is a solar cell manufactured?
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Individual film sequences for downloading:
Diffusion furnace, MP4, 184 KB
Firing, MP4, 160 KB
Plasma etching, MP4, 244 KB
Silicon nitrite, MP4, 212 KB
Supply chain management, MP4, 296 KB
Wet bench, MP4, 240 KB
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