Dielectric rear side passivation on Ribbon Growth on Substrate (RGS) solar cells

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HESS, Uwe, Sebastian JOOS, Johannes JUNGE, Sven SEREN, Giso HAHN, T. WEBER, P.-Y. PICHON, Axel SCHÖNECKER, 2010. Dielectric rear side passivation on Ribbon Growth on Substrate (RGS) solar cells. 25th European Photovoltaic Solar Energy Conference and Exhibition. 5th World Conference on photovoltaic Energy Conversion. Valencia, Spain, 6. Sep 2010 - 10. Sep 2010. In: DE SANTI, G.F., ed., H. OSSENBRINK, ed., P. HELM, ed.. 25th European Photovoltaic Solar Energy Conference and Exhibition. 5th World Conference on photovoltaic Energy Conversion. 25th European Photovoltaic Solar Energy Conference and Exhibition. 5th World Conference on photovoltaic Energy Conversion. Valencia, Spain, 6. Sep 2010 - 10. Sep 2010. München:WIP Renewable Energies, pp. 2233-2236

@inproceedings{He2010Diele-16013, title={Dielectric rear side passivation on Ribbon Growth on Substrate (RGS) solar cells}, year={2010}, doi={10.4229/25thEUPVSEC2010-2CV.3.44}, address={München}, publisher={WIP Renewable Energies}, booktitle={25th European Photovoltaic Solar Energy Conference and Exhibition. 5th World Conference on photovoltaic Energy Conversion}, pages={2233--2236}, editor={de Santi, G.F. and Ossenbrink, H. and Helm, P.}, author={Heß, Uwe and Joos, Sebastian and Junge, Johannes and Seren, Sven and Hahn, Giso and Weber, T. and Pichon, P.-Y. and Schönecker, Axel} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/16013"> <dc:contributor>Pichon, P.-Y.</dc:contributor> <dc:creator>Joos, Sebastian</dc:creator> <dc:creator>Schönecker, Axel</dc:creator> <dc:contributor>Hahn, Giso</dc:contributor> <dc:contributor>Weber, T.</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-10-05T09:23:01Z</dc:date> <dc:language>eng</dc:language> <dc:creator>Pichon, P.-Y.</dc:creator> <dcterms:issued>2010</dcterms:issued> <dcterms:bibliographicCitation>Publ. in: 25th European Photovoltaic Solar Energy Conference and Exhibition. 5th World Conference on photovoltaic Energy Conversion : proceedings of the international conference held 6-10 September 2010, in Valencia, Spain / G.F. de Santi, H. Ossenbrink and P. Helm (eds.). Munich, Germany : WIP-Renewable Energies, 2010. pp. 2223-2226</dcterms:bibliographicCitation> <dc:creator>Weber, T.</dc:creator> <dc:contributor>Seren, Sven</dc:contributor> <dc:creator>Seren, Sven</dc:creator> <dc:creator>Hahn, Giso</dc:creator> <dc:rights>deposit-license</dc:rights> <dc:contributor>Joos, Sebastian</dc:contributor> <dc:contributor>Schönecker, Axel</dc:contributor> <dc:contributor>Heß, Uwe</dc:contributor> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103605204-4002607-1"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/16013"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-10-05T09:23:01Z</dcterms:available> <dc:creator>Junge, Johannes</dc:creator> <dc:creator>Heß, Uwe</dc:creator> <dc:contributor>Junge, Johannes</dc:contributor> <dcterms:title>Dielectric rear side passivation on Ribbon Growth on Substrate (RGS) solar cells</dcterms:title> <dcterms:abstract xml:lang="eng">Ribbon Growth on Substrate (RGS) silicon wafers are cast directly from the melt onto reusable substrates. With a high production speed in the order of one wafer per second and the avoidance of material loss due to wire-sawing like in the block-casting technology, RGS is a cost-effective material. The wafers are multicrystalline with typical grain sizes between 0.1 mm to 1 mm. Up to now, the adapted solar cell process contained an open rear side metallization realized by an Al-grid [1]. This had to be implemented because of increased process induced shunting in cell areas with Al back side metallization. For rear side passivation and avoidance of possible shunting, two new cell back side designs are tested and compared to the RGS baseline process. In this work, silicon carbide as a dielectric passivation layer and its properties regarding a co-firing temperature step and the application of such a layer in the RGS solar cell process is investigated. It is found that a cell process for RGS containing a dielectric layer on the cell rear side in connection with Laser Fired Contacts (LFCs) enhances the cell performance by reducing the area of possibly contacted shunting paths further and thus increasing the parallel resistance of the solar cells. The gain in efficiency is hereby less attributed to the improved rear side passivation quality for this material with a limited diffusion length.</dcterms:abstract> </rdf:Description> </rdf:RDF>

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