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Polycrystalline Silicon Thin-film Solar Cells on ZnO:Al Coated Glass

Published online by Cambridge University Press:  01 February 2011

Christiane Becker
Affiliation:
christiane.becker@hmi.de, Hahn-Meitner-Institute Berlin, Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany, +49 30 8062 1388, +49 30 8062 1333
Pinar Dogan
Affiliation:
pinar.dogan@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
Benjamin Gorka
Affiliation:
benjamin.gorka@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
Florian Ruske
Affiliation:
florian.ruske@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
Tobias Hänel
Affiliation:
tobias.haenel@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
Jan Behrends
Affiliation:
jan.behrends@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
Frank Fenske
Affiliation:
fenske@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
Klaus Lips
Affiliation:
lips@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
Stefan Gall
Affiliation:
gall@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
Bernd Rech
Affiliation:
bernd.rech@hmi.de, Helmholtz-Zentrum Berlin für Materialien und Energie (formerly Hahn-Meitner-Institut Berlin), Dep. Silicon Photovoltaics, Kekulestr. 5, Berlin, 12489, Germany
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Abstract

Thin film solar cells based on polycrystalline silicon are an appealing option combining the advantages of thin film technologies, namely low cost, and the superior electrical properties of crystalline silicon. The specific structure aimed at in this work uses the relatively simple contacting scheme used in amorphous silicon thin film solar cells which relies on a front contact consisting of a transparent conducting oxide (TCO). Electron beam evaporation is applied as preparation method for the silicon films with high deposition rate. Solid phase crystallization (SPC) is used to crystallize the silicon films after deposition.

In this work the properties of as-deposited and crystallized silicon films produced by e beam evaporation are investigated as a function of deposition temperature. It is shown that the largest crystallites are obtained for deposition around 300 °C and subsequent treatment at 600 °C, while deposition at higher temperatures leads to small crystal grains which are not changed significantly during SPC.

Solar cells have been prepared on TCO-coated glass and were studied by measurements of the external quantum efficiency.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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References

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7. Becker, C. Conrad, E. Dogan, P. Fenske, F. Gorka, B. Hänel, T., Lee, K. Y. Rau, B. Ruske, F. Weber, T. Berginski, M. Hüpkes, J., Gall, S. and Rech, B. submitted for publication in Solar Energy Materials and Solar Cells (Proceedings of the17th Photovoltaic Solar Energy Conference, Fukuoka, Japan (2007)).Google Scholar
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Polycrystalline Silicon Thin-film Solar Cells on ZnO:Al Coated Glass
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