Thermal model of phosphor self-heating in phosphor-converted light-emitting diodes

In this paper, a self-heating model was developed based on Run Hu´s light scattering model to calculate the heat generation and an integrated thermal resistance model was established to predict the temperature of phosphor silicone. It is found that the trends of highest temperature along with the phosphor concentration and particles diameters are both non-monotonic with a wave crest. While the temperature varies monotonically with the changes of thermal conductivity of matrix and thickness of phosphor silicone, separately. Then the physical mechanism behind these phenomena are discussed respectively.