Contact formation on p-doped Si by screen-printing pure Ag pastes for bifacial n-type Si solar cells

Engelhardt, Josh; Fritz, Susanne; Emre, Erkan; Hahn, Giso

Contact formation on p-doped Si by screen-printing pure Ag pastes for bifacial n-type Si solar cells

Dateien

Engelhardt_0-374860.pdfGröße: 422.45 KBDownloads: 103

Datum

2016

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Beitrag zu einem Konferenzband

Publikationsstatus

Published

Erschienen in

Proceedings of 32nd EU PVSEC. München: WIP, 2016, pp. 647-650. ISBN 3-936338-41-8. Available under: doi: 10.4229/EUPVSEC20162016-2AV.1.29

Zusammenfassung

n-type solar cell concepts increasingly utilize emitter formation by diffusion from boron doped sources. Combining the advantage of n-type silicon material and bifacial cell architecture enables high-efficiency and versatile photovoltaics. In case of boron emitters, it was standard until now to form a metal-semiconductor contact by screenprinting Al containing Ag pastes. Instead of utilizing Al to enable Ag to form a sufficient contact with the risk in loss of VOC and FF, different glass compositions for pure Ag pastes were developed to form a contact with low impact on cell efficiency. In direct comparison this method in the first try already surpasses the performance of commercial Al containing Ag pastes in direct comparison. The experimental pastes show a distinctive gain in solar cell characteristics in contrast to commercial pure Ag pastes. In this case we reached an overall efficiency of 18.6% using pure Ag pastes. Contact resistivity values thereby range below 1-2 mcm² comparable to pure Ag pastes on n-type emitters and Ag/Al pastes on p-type emitters.

Fachgebiet (DDC)

530 Physik

Konferenz

32nd European Photovoltaic Solar Energy Conference and Exhibition, 20. Juni 2016 - 24. Juni 2016, Munich

Zitieren

ISO 690

ENGELHARDT, Josh, Susanne FRITZ, Erkan EMRE, Giso HAHN, 2016. Contact formation on p-doped Si by screen-printing pure Ag pastes for bifacial n-type Si solar cells. 32nd European Photovoltaic Solar Energy Conference and Exhibition. Munich, 20. Juni 2016 - 24. Juni 2016. In: Proceedings of 32nd EU PVSEC. München: WIP, 2016, pp. 647-650. ISBN 3-936338-41-8. Available under: doi: 10.4229/EUPVSEC20162016-2AV.1.29

BibTex

@inproceedings{Engelhardt2016Conta-36556,
  year={2016},
  doi={10.4229/EUPVSEC20162016-2AV.1.29},
  title={Contact formation on p-doped Si by screen-printing pure Ag pastes for bifacial n-type Si solar cells},
  isbn={3-936338-41-8},
  publisher={WIP},
  address={München},
  booktitle={Proceedings of 32nd EU PVSEC},
  pages={647--650},
  author={Engelhardt, Josh and Fritz, Susanne and Emre, Erkan and Hahn, Giso}
}

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