China recently limited the export of gallium nitride, a type of semiconductor used to manufacture a variety of consumer power electronics, such as cellphones and computers, as well as medical devices, cars, wind turbines, solar farms, LED lightbulbs and more. The U.S. Department of Energy awarded Patrick Lenahan, distinguished professor of engineering science and mechanics at Penn State, $1 million to investigate the possibility of replacing gallium nitride-based devices with boron nitride.