Recovery of LeTID by low intensity illumination : reaction kinetics, completeness and threshold temperature

Herguth, Axel; Derricks, Christian; Keller, Philipp; Terheiden, Barbara

Recovery of LeTID by low intensity illumination : reaction kinetics, completeness and threshold temperature

Dateien

Herguth_2-kz9siki0d7sx1.pdfGröße: 909.82 KBDownloads: 227

Datum

2017

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Beitrag zu einem Konferenzband

Publikationsstatus

Published

Erschienen in

PREU, Ralf, ed.. Proceedings of the 7th International Conference on Silicon Photovoltaics, SiliconPV 2017. Amsterdam: Elsevier, 2017, pp. 740-744. Energy Procedia. 124. eISSN 1876-6102. Available under: doi: 10.1016/j.egypro.2017.09.090

Zusammenfassung

Light (and elevated Temperature) Induced Degradation (LeTID) can seriously limit the efficiency of mc-Si PERC solar cells if no countermeasures are taken. Within this paper, the subsequent regeneration reaction, also induced by light at elevated temperatures, is investigated systematically in the low intensity regime (up to 4 suns) as a possible countermeasure. As might be expectable, degradation and regeneration reaction are found to speed up with increasing treatment temperature; however, completeness of regeneration is also found to be noticeably reduced at high temperatures (up to 380°C). This enforces the introduction of reverse reactions and gives rise to a 3-state reaction model for LeTID explaining the observed threshold temperature above which LeTID elimination does not work anymore. Furthermore, it is found that a treatment at high temperatures not only fails to eliminate LeTID, but also slows down the regeneration in a later low temperature treatment.

Fachgebiet (DDC)

530 Physik

Schlagwörter

light induced degradation, LeTID, mc-Si, solar cell

Konferenz

7th International Conference on Silicon Photovoltaics, SiliconPV 2017, 3. Apr. 2017 - 5. Apr. 2017, Freiburg, Germany

Zitieren

ISO 690

HERGUTH, Axel, Christian DERRICKS, Philipp KELLER, Barbara TERHEIDEN, 2017. Recovery of LeTID by low intensity illumination : reaction kinetics, completeness and threshold temperature. 7th International Conference on Silicon Photovoltaics, SiliconPV 2017. Freiburg, Germany, 3. Apr. 2017 - 5. Apr. 2017. In: PREU, Ralf, ed.. Proceedings of the 7th International Conference on Silicon Photovoltaics, SiliconPV 2017. Amsterdam: Elsevier, 2017, pp. 740-744. Energy Procedia. 124. eISSN 1876-6102. Available under: doi: 10.1016/j.egypro.2017.09.090

BibTex

@inproceedings{Herguth2017-09Recov-41930,
  year={2017},
  doi={10.1016/j.egypro.2017.09.090},
  title={Recovery of LeTID by low intensity illumination : reaction kinetics, completeness and threshold temperature},
  number={124},
  publisher={Elsevier},
  address={Amsterdam},
  series={Energy Procedia},
  booktitle={Proceedings of the 7th International Conference on Silicon Photovoltaics, SiliconPV 2017},
  pages={740--744},
  editor={Preu, Ralf},
  author={Herguth, Axel and Derricks, Christian and Keller, Philipp and Terheiden, Barbara}
}

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