Understanding the Influence of Shunts in the I-V Curves and Electroluminescence of Multijunction Solar Cells

Lombardero, Iván and Algora del Valle, Carlos (2019). Understanding the Influence of Shunts in the I-V Curves and Electroluminescence of Multijunction Solar Cells. "Solar Energy Materials and Solar Cells", v. 204 ; pp.. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2019.110236.

Description

Title: Understanding the Influence of Shunts in the I-V Curves and Electroluminescence of Multijunction Solar Cells
Author/s:
  • Lombardero, Iván
  • Algora del Valle, Carlos
Item Type: Article
Título de Revista/Publicación: Solar Energy Materials and Solar Cells
Date: November 2019
ISSN: 0927-0248
Volume: 204
Subjects:
Freetext Keywords: Multijunction solar cells, solar cell simulation, shunted solar cells
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

The influence of shunts on multijunction solar cells cannot be directly extrapolated from their effect on single junction solar cells. It is shown that the rules of thumb for single junction solar cells can mislead to wrong diagnosis on multijunction solar cells when they are only partially shunted. In order to properly assess their performance, three dimensional simulations have been carried out using equivalent electrical circuits. In this work, we point out the differences between completely and partially shunted multijunction solar cells under different regimes and evaluate the use of I V curves and electroluminescence as valid tools to detect the existence of shunts. A straightforward application of this work is its use in reliability analysis, allowing an undoubtedly identification of shunts at both the solar cell manufacture and on-field operation.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2017-83447-PUnspecifiedUnspecifiedUnspecified
Madrid Regional GovernmentS2018/EMT-4308UnspecifiedUnspecifiedUnspecified
Universidad Politécnica de MadridRP150910B12UnspecifiedUnspecifiedUnspecified

More information

Item ID: 57342
DC Identifier: http://oa.upm.es/57342/
OAI Identifier: oai:oa.upm.es:57342
DOI: 10.1016/j.solmat.2019.110236
Official URL: https://www.sciencedirect.com/science/article/pii/S0927024819305653?dgcid=author
Deposited by: Profesor Titular Carlos del Cañizo Nadal
Deposited on: 19 Nov 2019 09:21
Last Modified: 19 Nov 2019 09:21
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