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High Temperature Wide Bandgap Light Emitting Diodes For Harsh Environment Applications, Stephanie Sandoval
High Temperature Wide Bandgap Light Emitting Diodes For Harsh Environment Applications, Stephanie Sandoval
Electrical Engineering Undergraduate Honors Theses
The need for high temperature, high power density power modules for applications such as electric vehicles and space exploration has driven the research into wide bandgap LEDs due to their potential operation at elevated temperatures. Wide bandgap LEDs offer an attractive solution due to properties such as high temperature tolerance, strong radiation hardness and good thermal conductivity. In this thesis, the electrical properties of GaN-on-SiC heterojunctions are studied as a precursor to an LED study, and the optical characterization of an InGaN/GaN MQW is reported. The GaN-on-SiC study revealed that these wide bandgap LEDs have linear sensitivity at high temperatures. …