Ziyi He received his M.S. degree in Electrical Engineering at Arizona State University in 2021 and B.S. degree in Huazhong University of Science and technology in 2020. He joined ULTRA in 2021 and works on the MOCVD growth of ultra-wide bandgap materials and related devices. 

Yongjie obtained his Ph.D. from Arizona State University for his work on multiscale modeling for 3-terminal GaPNAs/Si tandem solar cells. After that, he worked as a postdoc supervised by Dr. Stephen Goodnick at ASU on indoor photovoltaics and on nonequilibrium phonon effects on hot carriers. He recently joined Dr. Marco Saraniti as a postdoc. For ULTRA, he will work on thermal and electrical transport using the Monte Carlo method. He is generally interested in predictive methods for energy related topics. 

Erick Guzman joined the University of California Riverside in Fall

2020 as an Electrical engineering PhD student under Dr. Alexander Balandin. He received his B.S. (2017) and M.S. (2020) in Physics from the California State University Northridge, and is currently an affiliate researcher at the University of California Los Angeles. His research is focused on studying the optical and acoustic phonons in UWBG materials using Raman and Brillouin spectroscopy.

Xiang Zheng is a research associate in Center for Device Thermography and Reliability (CDTR) at the University of Bristol. He got a PhD degree from Beijing University of Technology in 2020. His PhD research included the trapping effect in GaN-based HEMTs and the temperature measurement of wide bandgap semiconductors. His current research interests are the transport and thermal management of ultra-wide bandgap electronic materials and devices. Xiang received the China National Scholarship for PhD students in 2016 and 2018. He has published over ten papers about the reliability issues of GaN-based HEMTs. 

Subhajit Ghosh is a research engineer at the University of California Los Angeles. He obtained his Ph.D. in Electrical Engineering from the University of California Riverside in 2022, where his research focused on studying the electrical and low-frequency noise characteristics of advanced emerging materials and devices. Currently, at Ultra, Subhajit is involved in conducting comparative studies on the noise behavior of ultra-wideband gap semiconductor devices.

Harshad received his M.S. degree in Electrical Engineering from Arizona State University in 2016 with a thesis topic on 2DEG and parametric applications of kinetic inductance. He is now a PhD student with Dr. Stephen Goodnick working on diamond physics. His research focus is developing diamond devices for high power, high frequency and extreme environment applications. His expertise involves semiconductor characterization, device simulations and modelling and process development.