Public Research Seminar by Advanced Materials Thrust - Engineering Next Generation Wide and Ultrawide Bandgap Semiconductors
The progress in the conventional III-Nitride semiconductor devices have directly resulted in the revolutions of solid state lighting technology. Despite the rapid development of InGaN-based visible light emitting diodes (LEDs), the problems including the efficiency droop exist in the devices. Tremendous efforts have been put into improving efficiency of the LED devices, but the underlying mechanisms behind the device issues are fundamentally unresolved using conventional III-Nitride materials. On the other hand, the rapid development in ultrawide bandgap Gallium oxide semiconductor materials has received much attention for the high power microelectronic applications. Despite the development, there remain huge unexplored territories in the field of gallium oxide, especially related to its compound semiconductors, which are essential for the gallium oxide based transistors to move forward. Consequently pursuing the suitable strategy through material and heterostructure innovations will be critical for electronics and optoelectronics device applications.
Chee-Keong Tan is an Assistant Professor in the Department of Electrical and Computer Engineering at Clarkson University. He obtained his Ph.D. in Electrical Engineering from the Lehigh University in 2016 and his B.Eng. in Electrical Engineering from the University of Sheffield in 2011. His research has focused on semiconductor materials and nanostructures for electronic and optoelectronic devices applications. Tan has extensive experience in semiconductor materials design especially in wide and ultrawide bandgap semiconductors, such as dilute-anion III-Nitride and III-Oxide based materials. Specifically, he has established foundational work in dilute-anion III-Nitride field, bringing up novel concepts that provide breakthrough from fundamental bottlenecks in conventional III-Nitrides. Dr. Tan has authored or co-authored over 100 refereed journal publications and conference presentations in total.