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Synergistic Effects of Rear-Surface Passivation and the Metal Wrap Through Concept

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8 Author(s)
Thaidigsmann, B. ; Fraunhofer Inst. for Solar Energy Syst. ISE, Freiburg, Germany ; Drews, A. ; Fellmeth, T. ; Saint-Cast, P.
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We present small-area metal wrap through solar cells with passivated rear side (MWT-PERC), screen-printed metallization, and a homogeneous industrial-like emitter showing an efficiency of 20.2%. A comparison of H-pattern reference cells and cells with aluminum back surface field confirms the advantages of the MWT-PERC approach and reveals significant synergistic effects of rear-surface passivation and wrap through metallization.

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Photovoltaics, IEEE Journal of  (Volume:2 ,  Issue: 2 )