Abstract: The nitride semiconductors are the most revolutionary since Silicon. Though well known for visible photonics and lighting, they have much more to offer than initially imagined. The combination of polarization-induced complementary n- and p-type doping and combination of ultra-wide bandgap Aluminum Gallium Nitride quantum heterostructures with epitaxial nitride metals, nitride superconductors, and nitride ferroelectrics is leading to an exciting and unique material platform that enables applications ranging from high-speed RF communications, power electronics, and quantum communications and computation. I will discuss these opportunities and the challenges that researchers must address to achieve the promise. In this context I will share our recent findings of high-density 2-dimensional hole gases in undoped nitride semiconductor quantum heterostructures, and ferroelectricity in epitaxial nitrides, and how these findings are extending widebandgap electronics into unchartered application areas.

Bio: Debdeep Jena is the David E. Burr Professor of Engineering at Cornell University. He received his Ph.D. in Electrical and Computer Engineering from the University of California, Santa Barbara.