Characterization of LED Emission Spectra Under Varying Thermal Conditions

This report investigates the electro-optical and thermodynamic mechanisms of light-emitting diodes (LEDs) under varying thermal conditions. It focuses on the impact of elevated junction temperatures (Tj) on LED emission spectra across different semiconductor materials, including Indium Gallium Nitride (InGaN) and Aluminum Gallium Indium Phosphide (AlGaInP). Utilizing a high-resolution optical spectrometer and a thermoelectric temperature control stage, the study finds that higher operating tempe