Type of Publication: | Journal article |
Publication status: | Published |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-2-xrkv2iio5npt3 |
Author: | Derricks, Christian; Herguth, Axel; Hahn, Giso; Romer, Olaf; Pernau, Thomas |
Year of publication: | 2019 |
Published in: | Solar Energy Materials and Solar Cells ; 195 (2019). - pp. 358-366. - ISSN 0927-0248. - eISSN 1879-3398 |
DOI (citable link): | https://dx.doi.org/10.1016/j.solmat.2019.03.020 |
Summary: |
The benefit of sophisticated rear surface passivation quality in highly efficient solar cell structures made of boron-doped oxygen-rich Cz-Si wafers (e.g. PERC) can be reduced if bulk lifetime becomes a limiting factor due to boron-oxygen related light-induced degradation (BO-LID). A permanent lifetime recovery can be achieved through a regeneration treatment under illumination at elevated temperature. To evaluate the applicability of BO mitigation by means of regeneration at industrial relevant conditions, industrially-made PERC solar cell precursors were processed in a coupled fast firing and regeneration tool where the latter comprises an illuminated zone through which the solar cells transit on a belt. The treatment was evaluated by a subsequent intentional degradation. The results show that untreated solar cells suffer from BO-LID while properly treated samples are almost free of BO-LID demonstrating the applicability of a fast (around 15–30 s) and coupled regeneration process in mass production. Furthermore, it is found that fluctuations in precursor quality and/or variations in firing conditions are of minor significance for the BO-LID mitigation process. The firing conditions process window (peak firing temperature and belt velocity) overlaps with the treatment conditions window having the benefit of independent optimization.
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Subject (DDC): | 530 Physics |
Keywords: | PERC, Solar cells, Boron-oxygen related defect, Monocrystalline silicon (Cz-Si), Degradation, Regeneration |
Link to License: | In Copyright |
Bibliography of Konstanz: | Yes |
Refereed: | Unknown |
DERRICKS, Christian, Axel HERGUTH, Giso HAHN, Olaf ROMER, Thomas PERNAU, 2019. Industrially applicable mitigation of BO-LID in Cz-Si PERC-type solar cells within a coupled fast firing and halogen lamp based belt-line regenerator : A parameter study. In: Solar Energy Materials and Solar Cells. 195, pp. 358-366. ISSN 0927-0248. eISSN 1879-3398. Available under: doi: 10.1016/j.solmat.2019.03.020
@article{Derricks2019-06Indus-45575, title={Industrially applicable mitigation of BO-LID in Cz-Si PERC-type solar cells within a coupled fast firing and halogen lamp based belt-line regenerator : A parameter study}, year={2019}, doi={10.1016/j.solmat.2019.03.020}, volume={195}, issn={0927-0248}, journal={Solar Energy Materials and Solar Cells}, pages={358--366}, author={Derricks, Christian and Herguth, Axel and Hahn, Giso and Romer, Olaf and Pernau, Thomas} }
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