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Fire-through contacts - a new approach to contact the rear side of passivated silicon solar cells

 
: Thaidigsmann, Benjamin; Kick, Christopher; Drews, Andreas; Clement, Florian; Wolf, Andreas; Biro, Daniel

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Preprint urn:nbn:de:0011-n-2158791 (1.0 MByte PDF)
MD5 Fingerprint: b149bd309b27401dba7063d9c3d17950
Created on: 24.10.2012


Solar energy materials and solar cells 108 (2013), pp.164-169
ISSN: 0927-0248
Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit BMU
0329849B; MASSE
English
Journal Article, Electronic Publication
Fraunhofer ISE ()
PV Produktionstechnologie und Qualitätssicherung; Silicium-Photovoltaik; Oberflächen - Konditionierung; Passivierung; Lichteinfang; Kontaktierung und Strukturierung; Herstellung und Analyse von hocheffizienten Solarzellen; Pilotherstellung von industrienahen Solarzellen; Industrielle und neuartige Solarzellenstrukturen; PERC; LFC; passivation

Abstract
In this work, we present a novel fire-through contact (FTC) approach for the formation of local rear contacts for rear surface passivated silicon solar cells. The FTC approach aims at an easy integration of rear surface passivation into typical production lines. Besides rear surface passivation, no new technology is required as FTC only relies on common printing equipment. In this work, different FTC contact geometries and printing approaches are investigated using lifetime and resistance measurements. A PC1D model is implemented to allow for a comparison of different FTC configurations on cell level. Finally, the integration of the FTC approach into metal wrap through solar cells is presented.

: http://publica.fraunhofer.de/documents/N-215879.html