Kerfless exfoliated thin crystalline Si wafers with Al metallization layers for solar cells

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Raphael Niepelt
  • Jan Hensen
  • Verena Steckenreiter
  • Rolf Brendel
  • Sarah Kajari-Schöder

Organisationseinheiten

Externe Organisationen

  • Institut für Solarenergieforschung GmbH (ISFH)
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Details

OriginalspracheEnglisch
Seiten (von - bis)3227-3240
Seitenumfang14
FachzeitschriftJournal of materials research
Jahrgang30
Ausgabenummer21
Frühes Online-Datum1 Nov. 2015
PublikationsstatusVeröffentlicht - Nov. 2015

Abstract

We report on a kerfless exfoliation approach to further reduce the costs of crystalline silicon photovoltaics making use of evaporated Al as a double functional layer. The Al serves as the stress inducing element to drive the exfoliation process and can be maintained as a rear contacting layer in the solar cell after exfoliation. The 50-70 μm thick exfoliated Si layers show effective minority carrier lifetimes around 180 μs with diffusion lengths of 10 times the layer thickness. We analyze the thermo-mechanical properties of the Al layer by x-ray diffraction analysis and investigate its influence on the exfoliation process. We evaluate the approach for the implementation into solar cell production by determining processing limits and estimating cost advantages of a possible solar cell design route. The Al-Si bilayers are mechanically stable under processing conditions and exhibit a moderate cost savings potential of 3-36% compared to other c-Si cell concepts.

ASJC Scopus Sachgebiete

Zitieren

Kerfless exfoliated thin crystalline Si wafers with Al metallization layers for solar cells. / Niepelt, Raphael; Hensen, Jan; Steckenreiter, Verena et al.
in: Journal of materials research, Jahrgang 30, Nr. 21, 11.2015, S. 3227-3240.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Niepelt, R, Hensen, J, Steckenreiter, V, Brendel, R & Kajari-Schöder, S 2015, 'Kerfless exfoliated thin crystalline Si wafers with Al metallization layers for solar cells', Journal of materials research, Jg. 30, Nr. 21, S. 3227-3240. https://doi.org/10.1557/jmr.2015.309
Niepelt, R., Hensen, J., Steckenreiter, V., Brendel, R., & Kajari-Schöder, S. (2015). Kerfless exfoliated thin crystalline Si wafers with Al metallization layers for solar cells. Journal of materials research, 30(21), 3227-3240. https://doi.org/10.1557/jmr.2015.309
Niepelt R, Hensen J, Steckenreiter V, Brendel R, Kajari-Schöder S. Kerfless exfoliated thin crystalline Si wafers with Al metallization layers for solar cells. Journal of materials research. 2015 Nov;30(21):3227-3240. Epub 2015 Nov 1. doi: 10.1557/jmr.2015.309
Niepelt, Raphael ; Hensen, Jan ; Steckenreiter, Verena et al. / Kerfless exfoliated thin crystalline Si wafers with Al metallization layers for solar cells. in: Journal of materials research. 2015 ; Jahrgang 30, Nr. 21. S. 3227-3240.
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AU - Niepelt, Raphael

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AU - Steckenreiter, Verena

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