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A performance comparison between GaInP-on-Si and GaAs-on-Si 3-terminal tandem solar cells

The pursuit of ever-higher solar cell efficiencies has focused heavily on multijunction technologies. In tandem cells, subcells are typically either contacted via two terminals (2T) or four terminals (4T). Simulations show that the less-common three-terminal (3T) design may be comparable to 4T tande...

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Autores principales: VanSant, Kaitlyn T., Warren, Emily L., Geisz, John F., Klein, Talysa R., Johnston, Steve, McMahon, William E., Schulte-Huxel, Henning, Rienäcker, Michael, Peibst, Robby, Tamboli, Adele C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9450120/
https://www.ncbi.nlm.nih.gov/pubmed/36093056
http://dx.doi.org/10.1016/j.isci.2022.104950
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author VanSant, Kaitlyn T.
Warren, Emily L.
Geisz, John F.
Klein, Talysa R.
Johnston, Steve
McMahon, William E.
Schulte-Huxel, Henning
Rienäcker, Michael
Peibst, Robby
Tamboli, Adele C.
author_facet VanSant, Kaitlyn T.
Warren, Emily L.
Geisz, John F.
Klein, Talysa R.
Johnston, Steve
McMahon, William E.
Schulte-Huxel, Henning
Rienäcker, Michael
Peibst, Robby
Tamboli, Adele C.
author_sort VanSant, Kaitlyn T.
collection PubMed
description The pursuit of ever-higher solar cell efficiencies has focused heavily on multijunction technologies. In tandem cells, subcells are typically either contacted via two terminals (2T) or four terminals (4T). Simulations show that the less-common three-terminal (3T) design may be comparable to 4T tandem cells in its compatibility with a range of materials, operating conditions, and methods for subcell integration, yet the 3T design circumvents shading losses of the 4T intermediate conductive layers. This study analyzes the performance of two superstrate 3T III-V-on-Si (III-V//Si) tandem cells: One has slightly greater current contribution from the Si bottom cell (GaInP//Si) and the other has substantially greater current contribution from the GaAs top cell (GaAs//Si). Our results show that both tandem cells exhibit the same efficiency (21.3%), thereby demonstrating that the third terminal allows for flexibility in the selection of the top cell material, similar to the 4T design.
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spelling pubmed-94501202022-09-08 A performance comparison between GaInP-on-Si and GaAs-on-Si 3-terminal tandem solar cells VanSant, Kaitlyn T. Warren, Emily L. Geisz, John F. Klein, Talysa R. Johnston, Steve McMahon, William E. Schulte-Huxel, Henning Rienäcker, Michael Peibst, Robby Tamboli, Adele C. iScience Article The pursuit of ever-higher solar cell efficiencies has focused heavily on multijunction technologies. In tandem cells, subcells are typically either contacted via two terminals (2T) or four terminals (4T). Simulations show that the less-common three-terminal (3T) design may be comparable to 4T tandem cells in its compatibility with a range of materials, operating conditions, and methods for subcell integration, yet the 3T design circumvents shading losses of the 4T intermediate conductive layers. This study analyzes the performance of two superstrate 3T III-V-on-Si (III-V//Si) tandem cells: One has slightly greater current contribution from the Si bottom cell (GaInP//Si) and the other has substantially greater current contribution from the GaAs top cell (GaAs//Si). Our results show that both tandem cells exhibit the same efficiency (21.3%), thereby demonstrating that the third terminal allows for flexibility in the selection of the top cell material, similar to the 4T design. Elsevier 2022-08-19 /pmc/articles/PMC9450120/ /pubmed/36093056 http://dx.doi.org/10.1016/j.isci.2022.104950 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
VanSant, Kaitlyn T.
Warren, Emily L.
Geisz, John F.
Klein, Talysa R.
Johnston, Steve
McMahon, William E.
Schulte-Huxel, Henning
Rienäcker, Michael
Peibst, Robby
Tamboli, Adele C.
A performance comparison between GaInP-on-Si and GaAs-on-Si 3-terminal tandem solar cells
title A performance comparison between GaInP-on-Si and GaAs-on-Si 3-terminal tandem solar cells
title_full A performance comparison between GaInP-on-Si and GaAs-on-Si 3-terminal tandem solar cells
title_fullStr A performance comparison between GaInP-on-Si and GaAs-on-Si 3-terminal tandem solar cells
title_full_unstemmed A performance comparison between GaInP-on-Si and GaAs-on-Si 3-terminal tandem solar cells
title_short A performance comparison between GaInP-on-Si and GaAs-on-Si 3-terminal tandem solar cells
title_sort performance comparison between gainp-on-si and gaas-on-si 3-terminal tandem solar cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9450120/
https://www.ncbi.nlm.nih.gov/pubmed/36093056
http://dx.doi.org/10.1016/j.isci.2022.104950
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