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Fig. 4


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(a) Photograph of two solar cells fabricated in the silicon foil. Two Si pieces (25 mm × 25 mm) can be seen at the front and one (25 mm × 25 mm) piece is underneath. Investigated cell areas were either with (edge isolation line #1) or without (additional isolation line #2) locations hit by the welding laser. (b) Schematic cross section of this solar cell design.

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