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Understanding process-related efficiency variations of mc-Si PERC cells

Understanding process-related efficiency variations of multicrystalline silicon PERC cells
: Wasmer, S.; Greulich, J.; Höffler, H.; Wöhrle, N.; Rein, S.

Photovoltaics International 31 (2016), pp.43-52
ISSN: 1757-1197
Journal Article
Fraunhofer ISE ()
PV Produktionstechnologie und Qualitätssicherung; Photovoltaik; Silicium-Photovoltaik; Charakterisierung von Prozess- und Silicium-Materialien; Herstellung und Analyse von hocheffizienten Solarzellen; Pilotherstellung von industrienahen Solarzellen; Messtechnik und Produktionskontrolle; characterisation; silicon; PERC; simulation; analysis

This paper introduces and explains a simulation-assisted approach for determining and ranking the most influential causes of variations in experimentally obtained solar cell efficiencies, using the example of an industrially feasible multicrystalline silicon (mc-Si) passivated emitter and rear cell (PERC) process. The approach presented is especially helpful for ramping up PERC production; however, since it is basically transferable to any solar cell concept, it can also be applied to optimize established production lines.