Determining junction temperature based on material properties and geometric structures of LEDs
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Based on the material properties and geometric structures of LEDs, this paper proposes an analytical model for predicting the junction temperature. The parameters relevant to the junction temperature are calculated using the material properties and geometric structures of LEDs. The junction temperature of AlGaInP LED predicted from this work agrees with the available experimental data. Effects of LED working parameters and material properties on the junction temperatures are discussed in this study.
KeywordsLED Material properties Geometric structures Junction temperature
Support for this work by ministry of science and technology under Grant No. MOST 106-2221-E-146-006-, Guangdong educational department of scientific research project with Grant No. 2017GKTSCX105, Dongguan Polytechnic scientific research fund through Grant No. 2017a04, and Dongguan Polytechnic quality engineering Project under No. JGZD201826 is gratefully acknowledged.
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