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Laser-based foil metallization for industrial PERC solar cells

: Nekarda, J.; Graf, M.; Rodofili, A.; Preu, R.; Böhme, R.; Sontag, D.

Volltext urn:nbn:de:0011-n-2669523 (142 KByte PDF)
MD5 Fingerprint: 577f9b99bf4dca2857eedab100a0dedd
Erstellt am: 30.11.2013

Mine, A. ; European Commission:
28th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC 2013. Proceedings. DVD-ROM : 30 September to 04 October 2013, Paris, France
München: WIP-Renewable Energies, 2013
ISBN: 3-936338-33-7
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <28, 2013, Paris>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()
PV Produktionstechnologie und Qualitätssicherung; Silicium-Photovoltaik; Dotierung und Diffusion; Oberflächen: Konditionierung; Passivierung; Lichteinfang; Pilotherstellung von industrienahen Solarzellen; Boron; N-Type; Doping; Diffusion; Contact; Kontaktierung und Strukturierung; processing; metallization; contacting; PERC

In this contribution we present different results of our investigations regarding the use of aluminium foil as rear side metallization for solar cells with dielectric passivation and laser fired contacts (LFC). We benchmark this metallization technology against more state of the art approaches like local contact opening (LCO) or laser fired contact– both in combination with screen printed and fired aluminum paste. Therefore we compare the IV-data from solar cells, processed on industrial pilot line equipment. Thereby we report an efficiency of 20.5% on industrially sized wafers (A=238 cm2) outperforming the state of the art technologies.