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Title:
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Optimized back reflectors for rear diffused c-Si solar cells
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Author(s):
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Ingenito, A.; OrtizLizcano, J.C.; Luxembourg, S.L.; Santbergen, R.; Weeber, A.W.; Isabella, O.; Zeman, M.
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Published by:
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Publication date:
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ECN
Solar Energy
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20-9-2014
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ECN report number:
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Document type:
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ECN-W--14-030
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Article (scientific)
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Number of pages:
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7
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Published in: Energy Procedia (Elsevier), , 2014, Vol.55, p.94-100.
Abstract:
At present, research in c-Si solar cells is focused on increasing the efficiency while reducing the amount of used materials. Since silicon wafer and metal contribute up to 50% to the cost of a module, it is crucial to reduce the amount of these materials to fabricate cost-effective modules. In particular, for reducing the consumption of metal, the rear back contact can be patterned leaving ample metal-free regions that are well passivated. This is the concept of open-rear-metallization, typically found in solar cell concepts such as n-Pasha. In this contribution we compare a Distributed Bragg Reflector (DBR), white paint and white foil as cost-effective back reflectors for rear diffused c-Si solar cells.
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