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Memorias de investigación
Artículos en revistas:
Temperature accelerated life test on commercial concentrator III-V triple-junction solar cells and reliability analysis as a function of the operating temperature
Año:2014
Áreas de investigación
  • Ingeniería eléctrica, electrónica y automática
Datos
Descripción
A temperature accelerated life test on commercial concentrator lattice-matched GaInP/GaInAs/Ge triple-junction solar cells has been carried out. The acceleration of the aging has been accomplished by subjecting the solar cells at temperatures markedly higher than the nominal working temperature inside a concentrator, and the nominal photo-current condition (820 X) has been emulated by injecting current in darkness. Three tests at different temperatures have been carried out. The failure distributions across the three test temperatures have been fitted to an Arrhenius?Weibull model. An Arrhenius activation energy of 1.59?eV was determined from the fit. The reliability functions and parameters of these solar cells at two nominal working conditions (80?and?100?°C) have been obtained. In both cases, the instantaneous failure rate function monotonically increases, that is, the failures are of the wear-out kind. We have also observed that the reliability data are very sensitive to the nominal temperature condition. In fact, at a nominal working condition of 820 X and 80?°C, assuming that the concentration module works 5?h per day, the warranty time obtained for a failure population of 5% has been 113?years. However, for a nominal working condition of 820 X and 100?°C, the warranty time obtained for a failure population of 5% has been 7?years. Therefore, in order to offer a long-term warranty, the working temperature could be a key factor in the design of the concentration photovoltaic systems. Copyright © 2014 John Wiley & Sons, Ltd.
Internacional
Si
JCR del ISI
Si
Título de la revista
Progress in Photovoltaics
ISSN
1062-7995
Factor de impacto JCR
9,696
Información de impacto
Datos JCR del año 2012
Volumen
DOI
10.1002/pip.2461
Número de revista
Desde la página
1
Hasta la página
11
Mes
SIN MES
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Participantes
  • Autor: Pilar Espinet González (UPM)
  • Autor: Carlos Algora Del Valle (UPM)
  • Autor: Neftali Nuñez Mendoza (UPM)
  • Autor: Vincenzo Orlando (UPM)
  • Autor: Manuel Vazquez Lopez (UPM)
  • Autor: Jesus Bautista Villares (UPM)
  • Autor: Kenji Araki (Daido Steel co.)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Semiconductores III-V
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física
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