Fig. 2


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Upper left graph: Dark saturation density J0T from one single TOPCon layer extracted from field F5. Upper right graph: Total dark recombination current-density J0 either consisting of a bulk and two unmetallized TOPCon layers “inf.” (average F1 & F5) or a bulk and two TOPCon layers of which one side is being metallized (0.48 mm pitch, average F3 & F8). Lower part: PL images of all specimens from all institutes showing partly no increased recombination or significant inhomogeneities of which both preventing a local J0T,met analysis.

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