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HIP-MWT - A New Cell Concept for Industrial Processing of High-Performance Metal Wrap Through Silicon Solar Cells

: Thaidigsmann, B.; Spribille, A.; Plagwitz, H.; Schubert, G.; Fertig, F.; Clement, F.; Wolf, A.; Biro, D.; Preu, R.

Volltext urn:nbn:de:0011-n-2210671 (415 KByte PDF)
MD5 Fingerprint: 897d339fe89f50781ed421aa6d5f6b74
Erstellt am: 7.12.2012

European Commission:
26th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC. Proceedings : 5th to 9th September 2011 at the CCH - Congress Centre and International Fair Hamburg in Germany
München: WIP-Renewable Energies, 2011
ISBN: 3-936338-27-2
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <26, 2011, Hamburg>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()
PV Produktionstechnologie und Qualitätssicherung; Silicium-Photovoltaik; Industrielle und neuartige Solarzellenstrukturen

This work presents recent progress in research on multicrystalline silicon solar cells based on the HIP-MWT concept, a simplified structure for high-performance metal wrap through cells with rear surface passivation. With the simplified approach, no structured rear emitter is required as the rear dielectric acts as an insulating layer to isolate the n-type contacts from the p-type base. The fabricated large-area HIP-MWT solar cells with Al2O3 rear surface passivation and screen-printed contacts show conversion efficiencies of up to 18.2 % (confirmed) and clearly outperform both H-pattern PERC and MWT-BSF reference cells in terms of efficiency. The reverse bias behaviour of the cells is investigated using dark lock-in thermography and reverse current-voltage data.