Abstract
For the improvement of the silicon solar cell and competitiveness, one of the today challenges is to process Ni/Cu contact lines by chemical way. The study presented in this article is focused on the annealing of electroless nickel-phosphorous layers to create the NiSi film necessary for the good adhesion of the Ni/Cu stack and to guaranty the low contact resistance of these lines. The impact of the initial Ni-P layer thickness and the annealing temperature were particularly taken into account. Thanks to a combination of characterization techniques (SEM, EDS and XPS), the thickness and the composition of the NiSi layer were well established and monitored enabling to optimize the contact line procedure.
Published Version
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