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Synergistic effects of rear-surface passivation and the metal wrap through concept

: Thaidigsmann, B.; Drews, A.; Fellmeth, T.; Saint-Cast, P.; Wolf, A.; Clement, F.; Biro, D.; Preu, R.

Preprint urn:nbn:de:0011-n-2038023 (272 KByte PDF)
MD5 Fingerprint: 6b6c86d7568b87867656794dba4b7606
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Created on: 22.6.2012

IEEE Journal of Photovoltaics 2 (2012), No.2, pp.109-113
ISSN: 2156-3381
ISSN: 2156-3403
Journal Article, Electronic Publication
Fraunhofer ISE ()
PV Produktionstechnologie und Qualitätssicherung; Silicium-Photovoltaik; Industrielle und neuartige Solarzellenstrukturen; photovoltaic cells; surface passivation (PERC); metal wrap through (MWT)

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.