ECE 507 Seminar (Fall 2015) 2.00–3.15pm Friday, October 23rd, Room EB-103 Ultraviolet semiconductor optoelectronics. Xiaohang Li Division of Computer, Electrical, Mathematical Science and Engineering (CEMSE) King Abdullah University of Science and Technology (KAUST) Email: xiaohang.li@kaust.edu.sa Abstract Wide-bandgap semiconductors such as III-nitrides (AlN, GaN and their compounds) have superior optical, electronic and structural properties for optoelectronics and electronics in general. In the past decades, the development of III-nitride optoelectronics including blue light-emitting diode (LED) and laser has led to revolutions in many industries as partially reflected by the Nobel Prize in Physics 2014. Despite these progresses, there are still tremendous opportunities to explore III-nitride semiconductors for applications in the shorter wavelength range (i. e. ultraviolet, or UV). For instance, the compact and reliable UV LED is expected to dramatically innovate the entire disinfection industry. The UV laser can create numerous opportunities in data storage, non-line-of-sight communication, Raman spectroscopy, and bioagent detection. This seminar will focus on the latest breakthroughs and potential applications of UV optoelectronics. Lucidscience Biography Xiaohang Li is an Assistant Professor in the Division of Computer, Electrical, Mathematical Science and Engineering (CEMSE) at King Abdullah University of Science and Technology (KAUST). He received the B.S. degree with the highest honor in Applied Physics from Huazhong University of Science and Technology and M.S. degree in Electrical Engineering from Lehigh University. He received the Ph.D. degree in Electrical Engineering at Georgia Institute of Technology (GT). Currently, Xiaohang's research focuses on growth, fabrication and characterization of III-nitride semiconductors for optoelectronic and electronic devices. Previously, Xiaohang has conducted multidisciplinary research projects related to solid state lighting, colloidal particles, ferromagnetic fluid, and water purification at various research organizations. Xiaohang has authored over 65 journal and conference publications. He holds several issued and pending patents. He is an active journal reviewer. He is a recipient of D.J. Lovell Scholarship from International Society for Optics and Photonics (SPIE) (one recipient per year worldwide), Graduate Student Fellowship from IEEE Photonics Society (ten recipients per year worldwide), and Edison Prize from GT (one recipient per year). He represented GT to attend Global Young Scientist Summit. He served as president and treasurer of IEEE Photonics Society chapter at Lehigh University. He has been a guest blogger for Edison Innovation Foundation as well as a teacher and mentor for undergraduate, graduate and K12 students, including many underrepresented ones. All welcome