Determining Phosphor Temperature in Light-Emitting Diode Based on Divisional Normalized Emission Power

IEEE Electron Device Letters(2019)

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Abstract
We propose a non-contact method for determining phosphor/silicone temperature (phosphor temperature) in phosphor-coated light-emitting diode (pc-LED). The pc-LED with a surface mounted device (SMD) structure is primarily consisted of InGaN/GaN blue LED chip, (Sr,Ca)AlSiN3:Eu2+ red rare-earth phosphor, and transparent dimethyl silicone. This proposed method is basically based on a linear temperatur...
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Key words
Temperature measurement,Phosphors,Current measurement,Light emitting diodes,Heating systems,Temperature dependence,Calibration
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