Advanced processing steps for high efficiency solar cells based on EFG material

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2008
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Kaes, Martin
Groetschel, Daniela
Metz, Axel
Chan, B. T.
John, Joachim
Beaucarne, Guy
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2008 33rd IEEE Photovolatic Specialists Conference. - IEEE, 2008. - pp. 1-5. - ISSN 0160-8371. - ISBN 978-1-4244-1640-0
Abstract
In the past few years the quality of Edge-defined Film-fed Growth (EFG) material has strongly improved and can now compete with most standard multicrystalline materials. The maximum conversion efficiency of solar cells based on high quality EFG material is at the moment mostly limited by the applied solar cell processing steps. The state-of-the-art high efficiency process at the University of Konstanz (UKN) in combination with some additional processing steps is presented. The latter include hydrogen passivation of bulk defects, texturisation of the front surface by remote SF6 plasma (most samples shown here were textured at IMEC), surface passivation using a silicon oxide / silicon nitride stack and the application of Laser Fired Contacts (LFC). Single additional processing steps are investigated as well as various combinations of additional processing steps.
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530 Physics
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2008 33rd IEEE Photovolatic Specialists Conference (PVSC), May 11, 2008 - May 16, 2008, San Diego, CA, USA
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Cite This
ISO 690JUNGE, Johannes, Martin KAES, Daniela GROETSCHEL, Annika ZUSCHLAG, Sven SEREN, Giso HAHN, Axel METZ, B. T. CHAN, Joachim JOHN, Guy BEAUCARNE, 2008. Advanced processing steps for high efficiency solar cells based on EFG material. 2008 33rd IEEE Photovolatic Specialists Conference (PVSC). San Diego, CA, USA, May 11, 2008 - May 16, 2008. In: 2008 33rd IEEE Photovolatic Specialists Conference. IEEE, pp. 1-5. ISSN 0160-8371. ISBN 978-1-4244-1640-0. Available under: doi: 10.1109/PVSC.2008.4922444
BibTex
@inproceedings{Junge2008-05Advan-16111,
  year={2008},
  doi={10.1109/PVSC.2008.4922444},
  title={Advanced processing steps for high efficiency solar cells based on EFG material},
  isbn={978-1-4244-1640-0},
  issn={0160-8371},
  publisher={IEEE},
  booktitle={2008 33rd IEEE Photovolatic Specialists Conference},
  pages={1--5},
  author={Junge, Johannes and Kaes, Martin and Groetschel, Daniela and Zuschlag, Annika and Seren, Sven and Hahn, Giso and Metz, Axel and Chan, B. T. and John, Joachim and Beaucarne, Guy}
}
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