On the use of graphene to improve the performance of concentrator III‐V multijunction solar cells

© 2019 John Wiley & Sons, Ltd. Graphene has been intensively studied in photovoltaics focusing on emerging solar cells based on thin films, dye-sensitized solar cells, quantum dots, nanowires, and so forth. However, the typical efficiency of these solar cells incorporating graphene is below 16...

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Main Authors: Barrutia, Laura, Lombardero, Iván, Ochoa, Mario, Gabás, Mercedes, García, Iván, Palacios, Tomás, Johnson, Andrew, Rey‐Stolle, Ignacio, Algora, Carlos
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:English
Published: Wiley 2021
Online Access:https://hdl.handle.net/1721.1/136525
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author Barrutia, Laura
Lombardero, Iván
Ochoa, Mario
Gabás, Mercedes
García, Iván
Palacios, Tomás
Johnson, Andrew
Rey‐Stolle, Ignacio
Algora, Carlos
author2 Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
author_facet Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Barrutia, Laura
Lombardero, Iván
Ochoa, Mario
Gabás, Mercedes
García, Iván
Palacios, Tomás
Johnson, Andrew
Rey‐Stolle, Ignacio
Algora, Carlos
author_sort Barrutia, Laura
collection MIT
description © 2019 John Wiley & Sons, Ltd. Graphene has been intensively studied in photovoltaics focusing on emerging solar cells based on thin films, dye-sensitized solar cells, quantum dots, nanowires, and so forth. However, the typical efficiency of these solar cells incorporating graphene is below 16%. Therefore, the photovoltaic potential of graphene has not yet been shown. In this work, the use of graphene for concentration applications on III-V multijunction solar cells, which indeed are the solar cells with the highest efficiency, is demonstrated. First, a wide optoelectronic characterization of graphene layers is carried out. Then, the graphene layer is incorporated onto triple-junction solar cells, which decreases their series resistance by 35% (relative), leading to an increase in fill factor of 4% (absolute) at concentrations of 1000 suns. Simultaneously, the optical absorption of graphene produces a relative short-circuit current density decrease in the range of 0% to 1.8%. As a result, an absolute efficiency improvement close to 1% at concentrations of 1000 suns was achieved with respect to triple-junction solar cells without graphene. The impact of incorporating one and two graphene monolayers is also evaluated.
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spelling mit-1721.1/1365252023-02-23T15:29:53Z On the use of graphene to improve the performance of concentrator III‐V multijunction solar cells Barrutia, Laura Lombardero, Iván Ochoa, Mario Gabás, Mercedes García, Iván Palacios, Tomás Johnson, Andrew Rey‐Stolle, Ignacio Algora, Carlos Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science © 2019 John Wiley & Sons, Ltd. Graphene has been intensively studied in photovoltaics focusing on emerging solar cells based on thin films, dye-sensitized solar cells, quantum dots, nanowires, and so forth. However, the typical efficiency of these solar cells incorporating graphene is below 16%. Therefore, the photovoltaic potential of graphene has not yet been shown. In this work, the use of graphene for concentration applications on III-V multijunction solar cells, which indeed are the solar cells with the highest efficiency, is demonstrated. First, a wide optoelectronic characterization of graphene layers is carried out. Then, the graphene layer is incorporated onto triple-junction solar cells, which decreases their series resistance by 35% (relative), leading to an increase in fill factor of 4% (absolute) at concentrations of 1000 suns. Simultaneously, the optical absorption of graphene produces a relative short-circuit current density decrease in the range of 0% to 1.8%. As a result, an absolute efficiency improvement close to 1% at concentrations of 1000 suns was achieved with respect to triple-junction solar cells without graphene. The impact of incorporating one and two graphene monolayers is also evaluated. 2021-10-27T20:35:47Z 2021-10-27T20:35:47Z 2020 2021-02-05T19:08:42Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136525 en 10.1002/PIP.3207 Progress in Photovoltaics: Research and Applications Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley arXiv
spellingShingle Barrutia, Laura
Lombardero, Iván
Ochoa, Mario
Gabás, Mercedes
García, Iván
Palacios, Tomás
Johnson, Andrew
Rey‐Stolle, Ignacio
Algora, Carlos
On the use of graphene to improve the performance of concentrator III‐V multijunction solar cells
title On the use of graphene to improve the performance of concentrator III‐V multijunction solar cells
title_full On the use of graphene to improve the performance of concentrator III‐V multijunction solar cells
title_fullStr On the use of graphene to improve the performance of concentrator III‐V multijunction solar cells
title_full_unstemmed On the use of graphene to improve the performance of concentrator III‐V multijunction solar cells
title_short On the use of graphene to improve the performance of concentrator III‐V multijunction solar cells
title_sort on the use of graphene to improve the performance of concentrator iii v multijunction solar cells
url https://hdl.handle.net/1721.1/136525
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