Prof. Dunjun Chen received a Ph.D. from the Department of Materials Science and Engineering, Northwestern Polytechnical University in 2001. He is currently a professor at the School of Electronic Science and Engineering, Nanjing University. He was funded by Harvard University GSAS to be an invited visiting scholar in its School of Engineering and Applied Sciences from 2006 to 2007. He was a visiting researcher at the Royal Institute of Technology in Sweden in 2011. He serves as a reviewer for Crystal Growth & Design, Applied Physics Letters, IEEE Electron Device Letters, Optics Express, etc. He focuses on GaN-based optoelectronic detector/sensor structure design and device processes, GaN-based heterostructure design and characterization, GaN-based power electronic devices and power modules, device physics and reliability, and novel low-dimensional semiconductor structures and devices.