The influence of contact geometry and sub-contact passivation on the performance of screen-printed Al2O3 passivated solar cells

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2011
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OSSENBRINK, H., ed. and others. Proceedings of the 26th European Photovoltaic Solar Energy Conference and Exhibition : the most inspiring platform for the global PV solar sector. Munich, Germany: WIP-Renewable Energies, 2011, pp. 1137-1143. ISBN 3-936338-27-2. Available under: doi: 10.4229/26thEUPVSEC2011-2DO.1.6
Zusammenfassung

This paper evaluates possibilities to passivate the semiconductor-metal interface present at the contact sites of large-area PERC-type solar cells to minimize recombination losses at the rear side. It focuses on the contact and BSF formation by local alloying of screen printed Al in a belt furnace process and methods to limit the detrimental lateral Si transport away from the contact sites. The influence of different contact geometries and the resulting local BSF formation on the IV performance on cell level is assessed. For this purpose, 125×125 mm2 p-type Cz-Si solar cells are processed with a screen printing based solar cell process where Al2O3 is used as rear side dielectric and a variety of rear contacting patterns is implemented.

Zusammenfassung in einer weiteren Sprache
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530 Physik
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back-surface-field, passivation, Aluminium/Aluminum Oxide
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26th European Photovoltaic Solar Energy Conference and Exhibition, 5. Sept. 2011 - 9. Sept. 2011, Hamburg, Germany
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ISO 690LAUERMANN, Thomas, Annika ZUSCHLAG, Sascha SCHOLZ, Giso HAHN, Barbara TERHEIDEN, 2011. The influence of contact geometry and sub-contact passivation on the performance of screen-printed Al2O3 passivated solar cells. 26th European Photovoltaic Solar Energy Conference and Exhibition. Hamburg, Germany, 5. Sept. 2011 - 9. Sept. 2011. In: OSSENBRINK, H., ed. and others. Proceedings of the 26th European Photovoltaic Solar Energy Conference and Exhibition : the most inspiring platform for the global PV solar sector. Munich, Germany: WIP-Renewable Energies, 2011, pp. 1137-1143. ISBN 3-936338-27-2. Available under: doi: 10.4229/26thEUPVSEC2011-2DO.1.6
BibTex
@inproceedings{Lauermann2011influ-19207,
  year={2011},
  doi={10.4229/26thEUPVSEC2011-2DO.1.6},
  title={The influence of contact geometry and sub-contact passivation on the performance of screen-printed Al<sub>2</sub>O<sub>3</sub> passivated solar cells},
  isbn={3-936338-27-2},
  publisher={WIP-Renewable Energies},
  address={Munich, Germany},
  booktitle={Proceedings of the 26th European Photovoltaic Solar Energy Conference and Exhibition : the most inspiring platform for the global PV solar sector},
  pages={1137--1143},
  editor={Ossenbrink, H.},
  author={Lauermann, Thomas and Zuschlag, Annika and Scholz, Sascha and Hahn, Giso and Terheiden, Barbara}
}
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