James H. Edgar | University Distinguished Professor
Tom H. Barrett University Faculty Chair in Chemical Engineering
Ph.D., 1987 - University of Florida
M.S., 1982 - University of Florida
B.S., 1981 - University of Kansas
Professor J.H. Edgar received his bachelor's degree from the University of Kansas in 1981 and his PhD from the University of Florida in 1987, both in chemical engineering. He joined the chemical engineering department at K-State in January of 1988 as an assistant professor, and received promotions to associate and full professor in 1993 and 1997, respectively. Edgar was a research fellow at the NASA Lewis Research Center in the summers of 1990 and 1991, a sabbatical fellow at the Naval Research Laboratory (1994-1995) and a guest lecturer at Radbound University in Nijmegen, the Netherlands (2006-2007). In 2013, he was named a Kansas State University Distinguished Professor. He served as an Electronic and Photonic Materials program manager for the National Science Foundation for three years (2019-2022). He was head of the department from 2009 to 2022.
Edgar’s research is focused on the applications of chemical engineering principles to improve semiconductor processing. Specific areas of interest include crystal growth, epitaxy, and characterization of wide band gap semiconductors including group III nitrides (aluminum nitride and gallium nitride), silicon carbide, and boron compound semiconductors (boron nitride and icosahedral boron arsenide). Improvements in the quality of these semiconductors have made possible solid state ultraviolet light emitters (light emitting diodes and diode lasers), energy-saving high efficiency power electronics, neutron detectors, and nanophotonics.
Edgar entered the research field of wide band gap semiconductors in its infancy. Since then, the field has grown from a topic of interest to a handful of researchers into several multi-billion-dollar businesses, including high energy efficiency light emitting diodes for general illumination and energy-saving power electronics. This technological revolution has been made possible through advancements in material quality.
Edgar has co-authored more than 230 refereed journal articles, 50 conference proceedings, and edited two books. According to Google Scholar, the total number of citations to his work exceeds 9,600, and he has an h-index of 47. His research has been funded by the National Science Foundation, the Department of Energy, the Office of Naval Research, the American Chemical Society, and the II-VI Foundation. The total funding for his research exceeds $10 M. He has overseen the successful completion of 22 Ph.D. and 17 M.S. degrees in chemical engineering.