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UV-embossed textured back reflector structures for thin film silicon solar cells

Published online by Cambridge University Press:  01 February 2011

Jordi Escarre ,
Karin Söderström ,
Oscar Cubero ,
Franz-Josef Haug  and
Christophe Ballif
Jordi Escarre
Affiliation:
jordi.escarre@epfl.ch, Ecole Polytechnique Fédérale de Lausanne (EPFL). Institut of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Neuchatel, Switzerland
Karin Söderström
Affiliation:
karin.soederstroem@epfl.ch, Ecole Polytechnique Fédérale de Lausanne (EPFL). Institut of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Neuchatel, Switzerland
Oscar Cubero
Affiliation:
oscar.cubero@epfl.ch, Ecole Polytechnique Fédérale de Lausanne (EPFL). Institut of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Neuchatel, Switzerland
Franz-Josef Haug
Affiliation:
franz-josef.haug@epfl.ch, Ecole Polytechnique Fédérale de Lausanne (EPFL). Institut of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Neuchatel, Switzerland
Christophe Ballif
Affiliation:
christophe.ballif@epfl.ch, Ecole Polytechnique Fédérale de Lausanne (EPFL). Institut of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Neuchatel, Switzerland
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Abstract

In this work, we study the replication of nanotextures used in thin film silicon solar cells to enhance light trapping onto inexpensive substrates such as glass or polyethylene naphtalate (PEN). Morphological analysis was carried out to asses the quality of these replicas. Moreover, single and tandem a-Si:H solar cells were deposited on top of the master and replica structures to verify their suitability to be used as substrates for solar cells in n-i-p configuration. We find stabilized efficiencies around 8% which are similar for tandem cells on masters and PEN replicas.

Keywords

photovoltaicthin filmtexture
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1245: Symposium A – Amorphous and Polycrystalline Thin-Film Silicon Science and Technology-2010 , 2010 , 1245-A07-04
Copyright
Copyright © Materials Research Society 2010

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References

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