Determining junction temperature based on material properties and geometric structures of LEDs

摘要

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.