Overview

Ultra-wide bandgap materials have emerged as a potential route towards next generation power and RF devices with superior performance compared to conventional semiconductors such as Si, GaAs, SiC or GaN.  Many of the figure-of-merits for predictive device performance scale non-linearly with increasing critical electric field which is directly related to increasing bandgap and show great promise for these immature materials. Gallium oxide (Ga₂O₃) is an UWBG material of particular interest due to the availability of high-quality, relatively inexpensive, large-area native substrates with a wide range of doping required for various applications. However, there are still many technical challenges that must be addressed in order to realize the full potential of Ga₂O₃.  These include but are not limited to: epitaxial material quality and reductions of native defects; intentional doping; advanced device scaling and fabrication processes; and heterojunctions.

The 5th U.S. Gallium Oxide Workshop (GOX 2022) will be held in the Washington, D.C. area on August 7-10, 2022, to highlight domestic research in the rapidly emerging field of Ga₂O₃ and related materials with high critical field strength. The purpose of this workshop is to provide a premier platform for reporting recent advances in materials and device development and identify scientific gaps remaining. The intent is to create actionable coordination across government, industry and academia to enable rapid transitional technologies in this field.  There will be no written proceedings in order to facilitate a friendly and stimulating environment for scientific discussions among participants from domestic and international Ga₂O₃ research groups.  Attendees can expect topics including, but not limited to: bulk and epitaxial growth, theory/modeling/simulations, device and circuit advancements, materials characterization and novel properties, and heterostructures.

GOX 2022 will consist of two and a half days of presentations by invited and contributed speakers, as well as two evening poster sessions where the latest Ga₂O₃ results can be discussed. The Workshop will be preceded by a welcome reception beneficial for networking with others in the field and establishing new collaborations. Additionally, we hope that attendees will have time to explore all that the U.S. capitol area has to offer in terms of history and local attractions.

Technical Program

Program Chair

Kelson Chabak
Air Force Research Laboratory