Preliminary temperature Accelerated Life Test (ALT) on III-V commercial concentrator triple-junction solar cells

Espinet González, Pilar and Algora del Valle, Carlos and Orlando Carrillo, Vincenzo and Nuñez Mendoza, Neftali and Vázquez López, Manuel and Bautista Villares, Jesus and Xiugang, He and Barrutia Poncela, Laura and Rey-Stolle Prado, Ignacio and Araki, Kenji (2012). Preliminary temperature Accelerated Life Test (ALT) on III-V commercial concentrator triple-junction solar cells. In: "38th IEEE Photovoltaic Specialists Conference (PVSC), 2012", 03/06/2012 - 08/06/2012, Austin, Texas (USA). pp..

Description

Title: Preliminary temperature Accelerated Life Test (ALT) on III-V commercial concentrator triple-junction solar cells
Author/s:
  • Espinet González, Pilar
  • Algora del Valle, Carlos
  • Orlando Carrillo, Vincenzo
  • Nuñez Mendoza, Neftali
  • Vázquez López, Manuel
  • Bautista Villares, Jesus
  • Xiugang, He
  • Barrutia Poncela, Laura
  • Rey-Stolle Prado, Ignacio
  • Araki, Kenji
Item Type: Presentation at Congress or Conference (Article)
Event Title: 38th IEEE Photovoltaic Specialists Conference (PVSC), 2012
Event Dates: 03/06/2012 - 08/06/2012
Event Location: Austin, Texas (USA)
Title of Book: 38th IEEE Photovoltaic Specialists Conference (PVSC), 2012
Date: June 2012
Subjects:
Freetext Keywords: Accelerated life test, ALT, reliability, concentration, solar cells, III-V, CPV, Photovoltaics
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A quantitative temperature accelerated life test on sixty GaInP/GaInAs/Ge triple-junction commercial concentrator solar cells is being carried out. The final objective of this experiment is to evaluate the reliability, warranty period, and failure mechanism of high concentration solar cells in a moderate period of time. The acceleration of the degradation is realized by subjecting the solar cells at temperatures markedly higher than the nominal working temperature under a concentrator Three experiments at three different temperatures are necessary in order to obtain the acceleration factor which relates the time at the stress level with the time at nominal working conditions. . However, up to now only the test at the highest temperature has finished. Therefore, we can not provide complete reliability information but we have analyzed the life data and the failure mode of the solar cells inside the climatic chamber at the highest temperature. The failures have been all of them catastrophic. In fact, the solar cells have turned into short circuits. We have fitted the failure distribution to a two parameters Weibull function. The failures are wear-out type. We have observed that the busbar and the surrounding fingers are completely deteriorate

More information

Item ID: 20677
DC Identifier: http://oa.upm.es/20677/
OAI Identifier: oai:oa.upm.es:20677
Deposited by: Memoria Investigacion
Deposited on: 09 Oct 2013 16:12
Last Modified: 21 Apr 2016 23:28
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