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

Nuñez Mendoza, Neftali and González Ciprián, José Ramón and Vázquez López, Manuel and Algora del Valle, Carlos and 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.

Description

Title: Evaluation of the reliability of high concentrator GaAs solar cells by means of temperature accelerated aging tests
Author/s:
  • Nuñez Mendoza, Neftali
  • González Ciprián, José Ramón
  • Vázquez López, Manuel
  • Algora del Valle, Carlos
  • Espinet González, Pilar
Item Type: Article
Título de Revista/Publicación: Progress in Photovoltaics: Research and Applications
Date: August 2013
ISSN: 1062-7995
Volume: 21
Subjects:
Freetext Keywords: concentrator photovoltaic;CPV solar cells;reliability;warranty
Faculty: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Department: Electrónica Física
UPM's Research Group: Semiconductores III-V
Creative Commons Licenses: Recognition - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview

Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7283798NGCPVUnspecifiedA new generation of concentrator photovoltaic cells, modules and systems
Madrid Regional GovernmentS2009/ENE1477UnspecifiedUnspecifiedUnspecified

More information

Item ID: 30285
DC Identifier: http://oa.upm.es/30285/
OAI Identifier: oai:oa.upm.es:30285
DOI: 10.1002/pip.2212
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/pip.2212/abstract
Deposited by: PTU Neftali Nuñez Mendoza
Deposited on: 25 Jun 2014 10:10
Last Modified: 16 Apr 2015 18:35
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM