ECN publication
Title:
Optimized back reflectors for rear diffused c-Si solar cells
 
Author(s):
Ingenito, A.; OrtizLizcano, J.C.; Luxembourg, S.L.; Santbergen, R.; Weeber, A.W.; Isabella, O.; Zeman, M.
 
Published by: Publication date:
ECN Solar Energy 20-9-2014
 
ECN report number: Document type:
ECN-W--14-030 Article (scientific)
 
Number of pages:
7  

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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