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FoXy Development of solar-grade silicon feedstock for crystalline wafers and cells by purification and crystallization
Sabatino, M. di; Ovrelid, E.J.; Kopecek, R.; Binetti, S.; Mihailetchi, V.D.; Geerligs, L.J.; Vaernes, A.Nl
Published by: Publication date:
ECN Solar Energy 21-9-2009
ECN report number: Document type:
ECN-M--09-043 Conference Paper
Number of pages: Full text:
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Presented at: 24th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg, Germany, 21-25 september 2009.

This work reports on the results obtained in the EU project FoXy (contract nr SES6-019811). FoXy has been carried out in the 6th Framework Program in the Sustainable Energy Systems. It consists of a Europe-wide consortium of small and medium size enterprises, research institutes and universities. The project has aimed at developing cleaning and crystallisation processes for metallurgical SoG-Si feedstock, optimize associated cell and module processes, and set parameters for these types of feedstock. The major goals of the project have been: (i) achieve a significant cost reduction through more efficient cleaning processes for raw materials, (ii) secure high volume production of SoG-Si, (iii) develop recycling techniques for end-of-life products, (iv) shorten the energy payback time significantly, (v) manufacture wafers on a large-scale industrial production line 150x150mm2 aiming at 16-17% cell efficiency with increased yield. This work summarizes the highlight results of this three-year project.

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