Dr. Ke Xu is an Assistant Professor in the School of Physics and Astronomy and in Microsystems Engineering at Rochester Institute of Technology. Previously he was a Research Assistant Professor at University of Pittsburgh and Executive Director of the Pittsburgh Quantum Institute (PQI). He received his B.S. in Optical Engineering and Optoelectronics from Zhejiang University in China, and his Ph.D. in Electrical Engineering from University of Illinois at Chicago working with Dr. Michael Stroscio and Dr. Mitra Dutta. His doctoral research focused on graphene- and DNA aptamer-based micro/nano scale electronic devices and their applications in photodetectors and biomolecular sensing. He worked as a post-doctoral researcher with Dr. Susan Fullerton-Shirey and Dr. Alan Seabaugh at University of Notre Dame on the development of low-voltage and steep subthreshold swing components for beyond-CMOS electronic systems. His current research focuses on energy-efficient artificial intelligence (AI) hardware based on two-dimensional (2D) materials and iontronic and nanoelectronic devices, leveraging controlled ion–electron interactions to enable neuromorphic and real-time AI processing beyond conventional digital architectures.