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Titel:
17.9% back-contacted mc-Si cells resulting in module efficiency of 17.0%
 
Auteur(s):
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 6-9-2010
 
ECN publicatienummer: Publicatie type:
ECN-M--10-009 Conferentiebijdrage
 
Aantal pagina's: Volledige tekst:
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Gepresenteerd op: 25th European Photovoltaic Solar Energy Conference and Exhibition - 5th World Conference on Photovoltaic Energy Conversion, Valencia, Spain, 6-10 september 2010.

Samenvatting:
We obtained 17.9% cell efficiency on 160 micron thin cells sized 156 x 156 mm2 using ECN’s Metal-Wrap-Through (MWT) concept. Several cell processing steps were optimized and this led to an increase of more than 2% absolute in cell efficiency compared with previously reported values [1]. With these high-efficiency cells a 36-cell module was manufactured in our industry scale module pilot line. The aperture area efficiency of this module was 17.0% (as independently confirmed by JRC-ESTI): a world record in his category in 2009 and early 2010 [2]. In this module the average cell efficiency was 17.8%; this shows a small difference between cell and module efficiency.


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