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ECN publication
Mercury: Industrial IBC cell with front floating emitter for 20.9% and higher efficiency
Mewe, A.A.; Spinelli, P.; Burgers, A.R.; Janssen, G.J.M.; Guillevin, N.; Loo, B.H.W. van de; Kessels, E.; Vlooswijk, A.H.G.; Geerligs, L.J.; Cesar, I.
Published by: Publication date:
ECN Solar Energy 14-6-2015
ECN report number: Document type:
ECN-M--15-026 Conference Paper
Number of pages: Full text:
6 Download PDF  

In this paper break-through results on our 6” industrial Mercury cells are presented. We gained more than 1% absolute in efficiency by optimizing the processes and design of the cells, resulting in 20.9% cell efficiency. We used standard industrial equipment and the number of process steps similar to our commercial n-Pasha technology. The screen-printed IBC cells can be interconnected by our proven industrial foil-based interconnection scheme. Together with this result, we present a method to characterize and quantify the pn-junction recombination contribution to Voc and pseudo-FF losses in the cell. Finally, our roadmap to 23% Mercury cells is presented.

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