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On the formation of defect clusters in mc silicon solar cells

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2012

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27th European Photovoltaic Solar Energy Conference and Exhibition. München: WIP Renewable Energies, 2012, pp. 719-722. ISBN 3-936338-28-0. Available under: doi: 10.4229/27thEUPVSEC2012-2CO.13.3

Zusammenfassung

Defect clusters in multicrystalline silicon can have a strong influence on the quality of the material and the resulting solar cells. In this work we present an experimental approach to a better understanding of the formation of two huge defect clusters. We explore large quantities of wafers and solar cells from the same brick. This enables us to find the lateral and vertical positions where the formation of the clusters starts during crystallization. Measurements of these solar cells including light-beam induced current (LBIC), optical scans and microscope images of grain-selective etched wafers allow for a closer look. They are compared to EBSD measurements that provide information about the grain boundary types as well as the grain orientations in this location. This offers a better understanding of the cluster formation.

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530 Physik

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27th European Photovoltaic Solar Energy Conference and Exhibition, 24. Sept. 2012 - 28. Sept. 2012, Frankfurt, Germany
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ISO 690KOHLER, Dietmar, Annika ZUSCHLAG, Sven SEREN, Giso HAHN, 2012. On the formation of defect clusters in mc silicon solar cells. 27th European Photovoltaic Solar Energy Conference and Exhibition. Frankfurt, Germany, 24. Sept. 2012 - 28. Sept. 2012. In: 27th European Photovoltaic Solar Energy Conference and Exhibition. München: WIP Renewable Energies, 2012, pp. 719-722. ISBN 3-936338-28-0. Available under: doi: 10.4229/27thEUPVSEC2012-2CO.13.3
BibTex
@inproceedings{Kohler2012forma-22797,
  year={2012},
  doi={10.4229/27thEUPVSEC2012-2CO.13.3},
  title={On the formation of defect clusters in mc silicon solar cells},
  isbn={3-936338-28-0},
  publisher={WIP Renewable Energies},
  address={München},
  booktitle={27th European Photovoltaic Solar Energy Conference and Exhibition},
  pages={719--722},
  author={Kohler, Dietmar and Zuschlag, Annika and Seren, Sven and Hahn, Giso}
}
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