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Degradation of light emitting diodes:a proposed methodology 被引量:3

Degradation of light emitting diodes:a proposed methodology
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摘要 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. 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.
出处 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2011年第1期41-44,共4页 半导体学报(英文版)
基金 Project supported by the ENIAC Project 'Nanoelectronics for Safe,Fuel Efficient and Environment Friendly Automotive Solutions' (SE2A)
关键词 LED LIGHT DEGRADATION LUMEN overstress current temperature LED light degradation lumen overstress current temperature
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