Abstract
Abstract A stylus-based adhesion tester was used to characterise the adhesion of metal fingers on silicon solar cells. The measured lateral force together with the failure modes of finger cut-off and dislodgment, were identified for screen-printed silver contacts and nickel/copper plated laser-doped selective emitter cells. In-situ images were recorded to visualise the dynamics of the adhesion testing process. The contours of the measured lateral force were mapped to demonstrate the variability of finger adhesion characteristics across two representative solar cells.
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