CPV Cell Characterization Following One-Year Exposure in Golden, Colorado: Preprint

Research output: Contribution to conferencePaper

Abstract

A CPV module containing 30 III-V multijunction cells was operated on--sun for one year in Golden, Colorado. Each cell was characterized prior to and following exposure. A module power degradation of 10% was observed and found to be a result as an overall decrease in cell short circuit current and the presence of at least one shunted cell. A positive correlation between initial shunt current andan increase in shunt current following exposure was also found. Cell exfoliation was also observed and found to be coincident with the presence of water and/or charring of the cell package due to an off-sun event.
Original languageAmerican English
Number of pages6
StatePublished - 2014
Event10th International Conference on Concentrator Photovoltaics (CPV-10) - Albuquerque, New Mexico
Duration: 7 Apr 20149 Apr 2014

Conference

Conference10th International Conference on Concentrator Photovoltaics (CPV-10)
CityAlbuquerque, New Mexico
Period7/04/149/04/14

NREL Publication Number

  • NREL/CP-5J00-62484

Keywords

  • concentrator photovoltaics
  • exfoliation
  • exposure
  • reliability

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