Simulation-based roadmap for the integration of poly-silicon on oxide contacts into screen-printed crystalline silicon solar cells

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Christian N. Kruse
  • Sören Schäfer
  • Felix Haase
  • Verena Mertens
  • Henning Schulte-Huxel
  • Bianca Lim
  • Byungsul Min
  • Thorsten Dullweber
  • Robby Peibst
  • Rolf Brendel

Externe Organisationen

  • Institut für Solarenergieforschung GmbH (ISFH)
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Details

OriginalspracheEnglisch
Aufsatznummer996
FachzeitschriftScientific Reports
Jahrgang11
Ausgabenummer1
PublikationsstatusVeröffentlicht - 13 Jan. 2021

Abstract

We present a simulation-based study for identifying promising cell structures, which integrate poly-Si on oxide junctions into industrial crystalline silicon solar cells. The simulations use best-case measured input parameters to determine efficiency potentials. We also discuss the main challenges of industrially processing these structures. We find that structures based on p-type wafers in which the phosphorus diffusion is replaced by an n-type poly-Si on oxide junction (POLO) in combination with the conventional screen-printed and fired Al contacts show a high efficiency potential. The efficiency gains in comparsion to the 23.7% efficiency simulated for the PERC reference case are 1.0% for the POLO BJ (back junction) structure and 1.8% for the POLO IBC (interdigitated back contact) structure. The POLO BJ and the POLO IBC cells can be processed with lean process flows, which are built on major steps of the PERC process such as the screen-printed Al contacts and the Al2O3/SiN passivation. Cell concepts with contacts using poly-Si for both polarities (POLO 2-concepts) show an even higher efficiency gain potential of 1.3% for a POLO 2 BJ cell and 2.2% for a POLO 2 IBC cell in comparison to PERC. For these structures further research on poly-Si structuring and screen-printing on p-type poly-Si is necessary.

ASJC Scopus Sachgebiete

Zitieren

Simulation-based roadmap for the integration of poly-silicon on oxide contacts into screen-printed crystalline silicon solar cells. / Kruse, Christian N.; Schäfer, Sören; Haase, Felix et al.
in: Scientific Reports, Jahrgang 11, Nr. 1, 996, 13.01.2021.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Kruse, CN, Schäfer, S, Haase, F, Mertens, V, Schulte-Huxel, H, Lim, B, Min, B, Dullweber, T, Peibst, R & Brendel, R 2021, 'Simulation-based roadmap for the integration of poly-silicon on oxide contacts into screen-printed crystalline silicon solar cells', Scientific Reports, Jg. 11, Nr. 1, 996. https://doi.org/10.1038/s41598-020-79591-6
Kruse, C. N., Schäfer, S., Haase, F., Mertens, V., Schulte-Huxel, H., Lim, B., Min, B., Dullweber, T., Peibst, R., & Brendel, R. (2021). Simulation-based roadmap for the integration of poly-silicon on oxide contacts into screen-printed crystalline silicon solar cells. Scientific Reports, 11(1), Artikel 996. https://doi.org/10.1038/s41598-020-79591-6
Kruse CN, Schäfer S, Haase F, Mertens V, Schulte-Huxel H, Lim B et al. Simulation-based roadmap for the integration of poly-silicon on oxide contacts into screen-printed crystalline silicon solar cells. Scientific Reports. 2021 Jan 13;11(1):996. doi: 10.1038/s41598-020-79591-6
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title = "Simulation-based roadmap for the integration of poly-silicon on oxide contacts into screen-printed crystalline silicon solar cells",
abstract = "We present a simulation-based study for identifying promising cell structures, which integrate poly-Si on oxide junctions into industrial crystalline silicon solar cells. The simulations use best-case measured input parameters to determine efficiency potentials. We also discuss the main challenges of industrially processing these structures. We find that structures based on p-type wafers in which the phosphorus diffusion is replaced by an n-type poly-Si on oxide junction (POLO) in combination with the conventional screen-printed and fired Al contacts show a high efficiency potential. The efficiency gains in comparsion to the 23.7% efficiency simulated for the PERC reference case are 1.0% for the POLO BJ (back junction) structure and 1.8% for the POLO IBC (interdigitated back contact) structure. The POLO BJ and the POLO IBC cells can be processed with lean process flows, which are built on major steps of the PERC process such as the screen-printed Al contacts and the Al2O3/SiN passivation. Cell concepts with contacts using poly-Si for both polarities (POLO 2-concepts) show an even higher efficiency gain potential of 1.3% for a POLO 2 BJ cell and 2.2% for a POLO 2 IBC cell in comparison to PERC. For these structures further research on poly-Si structuring and screen-printing on p-type poly-Si is necessary.",
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T1 - Simulation-based roadmap for the integration of poly-silicon on oxide contacts into screen-printed crystalline silicon solar cells

AU - Kruse, Christian N.

AU - Schäfer, Sören

AU - Haase, Felix

AU - Mertens, Verena

AU - Schulte-Huxel, Henning

AU - Lim, Bianca

AU - Min, Byungsul

AU - Dullweber, Thorsten

AU - Peibst, Robby

AU - Brendel, Rolf

N1 - Funding Information: The authors thank S. Bordihn, Y. Larionova, C. Hollemann, A. Merkle, T. Wietler, S. Kajari-Schröder and R. Niepelt for fruitful discussions concerning the nomenclature, input parameters and process sequences. This work is funded by the German Ministry for Economic Affairs and Energy under Grant FKZ 0324274B (Genesis).

PY - 2021/1/13

Y1 - 2021/1/13

N2 - We present a simulation-based study for identifying promising cell structures, which integrate poly-Si on oxide junctions into industrial crystalline silicon solar cells. The simulations use best-case measured input parameters to determine efficiency potentials. We also discuss the main challenges of industrially processing these structures. We find that structures based on p-type wafers in which the phosphorus diffusion is replaced by an n-type poly-Si on oxide junction (POLO) in combination with the conventional screen-printed and fired Al contacts show a high efficiency potential. The efficiency gains in comparsion to the 23.7% efficiency simulated for the PERC reference case are 1.0% for the POLO BJ (back junction) structure and 1.8% for the POLO IBC (interdigitated back contact) structure. The POLO BJ and the POLO IBC cells can be processed with lean process flows, which are built on major steps of the PERC process such as the screen-printed Al contacts and the Al2O3/SiN passivation. Cell concepts with contacts using poly-Si for both polarities (POLO 2-concepts) show an even higher efficiency gain potential of 1.3% for a POLO 2 BJ cell and 2.2% for a POLO 2 IBC cell in comparison to PERC. For these structures further research on poly-Si structuring and screen-printing on p-type poly-Si is necessary.

AB - We present a simulation-based study for identifying promising cell structures, which integrate poly-Si on oxide junctions into industrial crystalline silicon solar cells. The simulations use best-case measured input parameters to determine efficiency potentials. We also discuss the main challenges of industrially processing these structures. We find that structures based on p-type wafers in which the phosphorus diffusion is replaced by an n-type poly-Si on oxide junction (POLO) in combination with the conventional screen-printed and fired Al contacts show a high efficiency potential. The efficiency gains in comparsion to the 23.7% efficiency simulated for the PERC reference case are 1.0% for the POLO BJ (back junction) structure and 1.8% for the POLO IBC (interdigitated back contact) structure. The POLO BJ and the POLO IBC cells can be processed with lean process flows, which are built on major steps of the PERC process such as the screen-printed Al contacts and the Al2O3/SiN passivation. Cell concepts with contacts using poly-Si for both polarities (POLO 2-concepts) show an even higher efficiency gain potential of 1.3% for a POLO 2 BJ cell and 2.2% for a POLO 2 IBC cell in comparison to PERC. For these structures further research on poly-Si structuring and screen-printing on p-type poly-Si is necessary.

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JF - Scientific Reports

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