On improved passivation stability on highly-doped crystalline silicon and the long-term stability of regenerated Cz-Si

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2018
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Solar Energy Materials and Solar Cells. 2018, 185, pp. 277-282. ISSN 0927-0248. eISSN 1879-3398. Available under: doi: 10.1016/j.solmat.2018.05.031
Zusammenfassung

Different surface passivation approaches are applied on Cz-Si and FZ-Si samples and long-term stability is investigated during treatments at 60–80 °C and up to 1 sun equivalent illumination intensity. It is shown that SiNx:H and AlOx:H/SiNx:H surface passivation show a much more stable passivation quality when deposited on P-diffused and B-diffused surfaces, respectively. Long-term measurements lead to the conclusion that Cz-Si samples fired at measured peak temperatures up to 750 °C are very stable after regeneration of bulk defects. Samples fired at 850 °C show much stronger bulk-related degradation potentially linked to light and elevated temperature induced degradation (LeTID). Furthermore, Cz-Si samples fired at 850 °C express an instable behavior after a regeneration treatment.

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530 Physik
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Light induced degradation, Surface related degradation, Diffused silicon, Silicon nitride, Czochralski, related degradation
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ISO 690SPERBER, David, Axel HERGUTH, Giso HAHN, 2018. On improved passivation stability on highly-doped crystalline silicon and the long-term stability of regenerated Cz-Si. In: Solar Energy Materials and Solar Cells. 2018, 185, pp. 277-282. ISSN 0927-0248. eISSN 1879-3398. Available under: doi: 10.1016/j.solmat.2018.05.031
BibTex
@article{Sperber2018-10impro-42905,
  year={2018},
  doi={10.1016/j.solmat.2018.05.031},
  title={On improved passivation stability on highly-doped crystalline silicon and the long-term stability of regenerated Cz-Si},
  volume={185},
  issn={0927-0248},
  journal={Solar Energy Materials and Solar Cells},
  pages={277--282},
  author={Sperber, David and Herguth, Axel and Hahn, Giso}
}
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