Ultrawide‐Bandgap Semiconductors: Research Opportunities and Challenges
Abstract
Ultrawide‐bandgap (UWBG) semiconductors, with bandgaps significantly wider than the 3.4 eV of GaN, represent an exciting and challenging new area of research in semiconductor materials, physics, devices, and applications. Because many figures‐of‐merit for device performance scale nonlinearly with bandgap, these semiconductors have long been known to have compelling potential advantages over their narrower‐bandgap cousins in high‐power and RF electronics, as well as in deep‐UV optoelectronics, quantum information, and extreme‐environment applications. Only recently, however, have the UWBG semiconductor materials, such as high Al‐content AlGaN, diamond and Ga2O3, advanced in maturity to the point where realizing some of their tantalizing advantages is a relatively near‐term possibility. In this article, the materials, physics, device and application research opportunities and challenges for advancing their state of the art are surveyed.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 04, 2017
- Source ID
- 10.1002/aelm.201600501
Entities
People
- Andrew D. Koehler
- Arthur F. Witulski
- C. G. Van De Walle
- C. L. Chua
- D. Jena
- E. Bellotti
- E. R. Heller
- J. A. Cooper
- J. A. Simmons
- J. B. Shealy
- J. H. Leach
- Jeff Y. Tsao
- K. A. Jones
- K. R. Evans
- M. A. Khan
- M. E. Coltrin
- M. Higashiwaki
- M. Saif Islam
- M. Wraback
- M.A. Hollis
- Marko J. Tadjer
- N. M. Johnson
- P Juodawlkis
- R. J. Nemanich
- Ramón Collazo
- Robert C. N. Pilawa-Podgurski
- Robert Kaplar
- S. Graham
- Shuvro Chowdhury
- Sreejith Kochupurackal Rajan
- T.A. Grotjohn
- Umesh K. Mishra
- Zlatko Sitar
Organizations
- Air Force Office of Scientific Research
- Air Force Research Laboratory
- Arizona State University
- Boston University
- Cornell University
- Georgia Tech
- MIT Lincoln Laboratory
- Massachusetts Institute of Technology
- Michigan State University
- National Institute of Information and Communications Technology
- National Nuclear Security Administration
- National Science Foundation
- North Carolina State University
- Ohio State University
- PARC
- Purdue University
- Sandia National Laboratories
- United States Army Research Laboratory
- United States Naval Research Laboratory
- University of California, Davis
- University of California, Santa Barbara
- University of Illinois Urbana–Champaign
- University of South Carolina
- Vanderbilt University