Degradation of light emitting diodes: A proposed methodology

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9 Citations (Scopus)

Abstract

Due to their long lifetime and high efficacy, light emitting diodes have the potential to revolutionize the illumination industry. However, self heat and high environmental temperature which will lead to increased junction temperature and degradation due to electrical overstress can shorten the life of the light emitting diode. In this research, a methodology to investigate the degradation of the LED emitter has been proposed. The epoxy lens of the emitter can be modelled using simplified Eyring methods whereas an equation has been proposed for describing the degradation of the LED emitters.
Original languageEnglish
Article number014004
Number of pages5
JournalJournal of Semiconductors
Volume32
DOIs
Publication statusPublished - 2011

Keywords

  • LED
  • light
  • degradation
  • lumen
  • overstress current
  • temperature

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