On the Use of Graphene to Improve the Performance of Concentrator III-V Multijunction Solar Cells

Barrutia Poncela, Laura and Lombardero, Iván and Ochoa Gómez, Mario and Gabás, Mercedes and García Vara, Iván and Palacios, Tomás and Johnson, Andrew and Rey-Stolle Prado, Ignacio and Algora del Valle, Carlos (2019). On the Use of Graphene to Improve the Performance of Concentrator III-V Multijunction Solar Cells. "Progress in Photovoltaics", v. N/A (n. N/A); pp. 1-11. ISSN 1062-7995. https://doi.org/10.1002/pip.3207.

Description

Title: On the Use of Graphene to Improve the Performance of Concentrator III-V Multijunction Solar Cells
Author/s:
  • Barrutia Poncela, Laura
  • Lombardero, Iván
  • Ochoa Gómez, Mario
  • Gabás, Mercedes
  • García Vara, Iván
  • Palacios, Tomás
  • Johnson, Andrew
  • Rey-Stolle Prado, Ignacio
  • Algora del Valle, Carlos
Item Type: Article
Título de Revista/Publicación: Progress in Photovoltaics
Date: November 2019
ISSN: 1062-7995
Volume: N/A
Subjects:
Freetext Keywords: graphene, III-V solar cells, concentrator photovoltaics
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física, Ingeniería Eléctrica y Física Aplicada
UPM's Research Group: Semiconductores III-V
Creative Commons Licenses: None

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Abstract

Graphene has been intensively studied in photovoltaics focusing on emerging solar cells based on thin films, dye-sensitized, quantum dots, nanowires, etc. However, the typical efficiency of these solar cells incorporating graphene are below 16%. Therefore, the photovoltaic potential of graphene has not been already 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. Firstly, 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 1,000 suns. Simultaneously, the optical absorption of graphene produces a relative short circuit current density decrease in the range of 0-1.8%. As a result, an absolute efficiency improvement close to 1% at concentrations of 1,000 suns was achieved with respect to triple junction solar cells without graphene. The impact of incorporating one and two graphene monolayers is also evaluated.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2017-83447-PUnspecifiedUnspecifiedUnspecified
Government of SpainPCIN-2015-181-C02-01UnspecifiedUnspecifiedUnspecified
Government of SpainPCIN-2015-181-C02-02UnspecifiedUnspecifiedUnspecified
Madrid Regional GovernmentY2018/EMT-4892UnspecifiedUnspecifiedUnspecified

More information

Item ID: 57397
DC Identifier: http://oa.upm.es/57397/
OAI Identifier: oai:oa.upm.es:57397
DOI: 10.1002/pip.3207
Official URL: https://onlinelibrary.wiley.com/doi/pdf/10.1002/pip.3207
Deposited by: Prof. Carlos Algora
Deposited on: 25 Nov 2019 09:19
Last Modified: 25 Nov 2019 09:19
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