Evaluation of the reliability of high concentrator GaAs solar cells by means of temperature accelerated aging tests

Nuñez Mendoza, Neftali; González Ciprián, José Ramón; Vázquez López, Manuel; Algora del Valle, Carlos y Espinet González, Pilar (2013). Evaluation of the reliability of high concentrator GaAs solar cells by means of temperature accelerated aging tests. "Progress in Photovoltaics: Research and Applications", v. 21 (n. 5); pp. 1104-1113. ISSN 1062-7995. https://doi.org/10.1002/pip.2212.

Descripción

Título: Evaluation of the reliability of high concentrator GaAs solar cells by means of temperature accelerated aging tests
Autor/es:
  • Nuñez Mendoza, Neftali
  • González Ciprián, José Ramón
  • Vázquez López, Manuel
  • Algora del Valle, Carlos
  • Espinet González, Pilar
Tipo de Documento: Artículo
Título de Revista/Publicación: Progress in Photovoltaics: Research and Applications
Fecha: Agosto 2013
Volumen: 21
Materias:
Palabras Clave Informales: concentrator photovoltaic;CPV solar cells;reliability;warranty
Escuela: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Departamento: Electrónica Física
Grupo Investigación UPM: Semiconductores III-V
Licencias Creative Commons: Reconocimiento - No comercial

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Resumen

ABSTRACT Evaluating the reliability, warranty period, and power degradation of high concentration solar cells is crucial to introducing this new technology to the market. The reliability of high concentration GaAs solar cells, as measured in temperature accelerated life tests, is described in this paper. GaAs cells were tested under high thermal accelerated conditions that emulated operation under 700 or 1050 suns over a period exceeding 10 000 h. Progressive power degradation was observed, although no catastrophic failures occurred. An Arrhenius activation energy of 1.02 eV was determined from these tests. The solar cell reliability [R(t)] under working conditions of 65°C was evaluated for different failure limits (1–10% power loss). From this reliability function, the mean time to failure and the warranty time were evaluated. Solar cell temperature appeared to be the primary determinant of reliability and warranty period, with concentration being the secondary determinant. A 30-year warranty for these 1 mm2-sized GaAs cells (manufactured according to a light emitting diode-like approach) may be offered for both cell concentrations (700 and 1050 suns) if the solar cell is operated at a working temperature of 65°C.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
FP7283798NGCPVSin especificarA new generation of concentrator photovoltaic cells, modules and systems
Comunidad de MadridS2009/ENE1477Sin especificarSin especificarSin especificar

Más información

ID de Registro: 30285
Identificador DC: http://oa.upm.es/30285/
Identificador OAI: oai:oa.upm.es:30285
Identificador DOI: 10.1002/pip.2212
URL Oficial: http://onlinelibrary.wiley.com/doi/10.1002/pip.2212/abstract
Depositado por: PTU Neftali Nuñez Mendoza
Depositado el: 25 Jun 2014 10:10
Ultima Modificación: 16 Abr 2015 18:35
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