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Titel:
Recycling of P-type mc-Si topcuts into P-type mono c-Si solar cells
 
Auteur(s):
Bronsveld, P.C.P.; Manshanden, P.; Lenzmann, F.O.; Gjerstad, O; Ovrelid, E.I.
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 1-9-2013
 
ECN publicatienummer: Publicatie type:
ECN-W--13-049 Artikel wetenschap tijdschrift
 
Aantal pagina's:
6  

Gepubliceerd in: Energy Procedia (Elsevier), , 2013, Vol.38, p.536-541.

Samenvatting:
Solar cell results and material analysis are presented of 2 p type Czochralski (Cz) ingots pulled from a charge consisting of 100% and 50% recycled multicrystalline silicon top cuts. The top cuts were pre cleaned with a dedicated low energy consuming technology. No structure loss was observed in the bodies of the ingots The performance of solar cells made from the 100% recycled Si ingot decreases towards the seed end of the ingot, which could be related to a non optimal pulling process. Solar cells from the tail end of this ingot and from the 50% recycled Si ingot demonstrated an average solar cell efficiency of 18.6%. This is only 0.1% absolute lower than the efficiency of higher resistivity reference solar cells from commercially available wafers that were co processed.

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