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Title:
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17.9% back-contacted mc-Si cells resulting in module efficiency of 17.0%
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Author(s):
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Lamers, M.W.P.E.; Tjengdrawira, C.; Koppes, M.; Bennett, I.J.; Bende, E.E.; Visser, T.P.; Kossen, E.J.; Brockholz, B.; Mewe, A.A.; Romijn, I.G.; Sauar, E.; Carnel, L.; Julsrud, S.; Naas, T.; Jong, P.C. de; Weeber, A.W.
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Published by:
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Publication date:
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ECN
Solar Energy
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6-9-2010
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ECN report number:
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Document type:
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ECN-M--10-009
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Conference Paper
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Number of pages:
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Full text:
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5
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Download PDF
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Presented at: 25th European Photovoltaic Solar Energy Conference and Exhibition - 5th World Conference on Photovoltaic Energy Conversion, Valencia, Spain, 6-10 september 2010.
Abstract:
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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