Ultrawide‐bandgap semiconductors: research opportunities and challenges

JY Tsao, S Chowdhury, MA Hollis… - Advanced Electronic …, 2018 - Wiley Online Library
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 …

Compositionally graded III-nitride alloys: Building blocks for efficient ultraviolet optoelectronics and power electronics

H Zhang, C Huang, K Song, H Yu, C Xing… - Reports on Progress …, 2021 - iopscience.iop.org
Wide bandgap aluminum gallium nitride (AlGaN) semiconductor alloys have established
themselves as the key materials for building ultraviolet (UV) optoelectronic and power …

[HTML][HTML] Perspective: Ga2O3 for ultra-high power rectifiers and MOSFETS

SJ Pearton, F Ren, M Tadjer, J Kim - Journal of Applied Physics, 2018 - pubs.aip.org
Gallium oxide (Ga2O3) is emerging as a viable candidate for certain classes of power
electronics with capabilities beyond existing technologies due to its large bandgap …

Group-III nitride heteroepitaxial films approaching bulk-class quality

J Wang, N Xie, F Xu, L Zhang, J Lang, X Kang, Z Qin… - Nature Materials, 2023 - nature.com
III-nitride wide bandgap semiconductors are promising materials for modern optoelectronics
and electronics. Their application has progressed greatly thanks to the continuous quality …

Ultra-wide-bandgap AlGaN power electronic devices

RJ Kaplar, AA Allerman, AM Armstrong… - ECS Journal of Solid …, 2016 - iopscience.iop.org
Abstract" Ultra" wide-bandgap semiconductors are an emerging class of materials with
bandgaps greater than that of gallium nitride (EG> 3.4 eV) that may ultimately benefit a wide …

[HTML][HTML] Thermal conductivity of crystalline AlN and the influence of atomic-scale defects

RL Xu, M Muñoz Rojo, SM Islam, A Sood… - Journal of Applied …, 2019 - pubs.aip.org
Aluminum nitride (AlN) plays a key role in modern power electronics and deep-ultraviolet
photonics, where an understanding of its thermal properties is essential. Here, we measure …

[HTML][HTML] Ultrawide-bandgap semiconductors: An overview

MH Wong, O Bierwagen, RJ Kaplar… - Journal of Materials …, 2021 - Springer
Ultrawide-bandgap (UWBG) semiconductor technology is presently going through a
renaissance exemplified by advances in material-level understanding, extensions of known …

[HTML][HTML] Toward AlGaN channel HEMTs on AlN: Polarization-induced 2DEGs in AlN/AlGaN/AlN heterostructures

J Singhal, R Chaudhuri, A Hickman, V Protasenko… - APL Materials, 2022 - pubs.aip.org
Due to its high breakdown electric field, the ultra-wide bandgap semiconductor AlGaN has
garnered much attention recently as a promising channel material for next-generation high …

[HTML][HTML] A perspective on the electro-thermal co-design of ultra-wide bandgap lateral devices

S Choi, S Graham, S Chowdhury, ER Heller… - Applied Physics …, 2021 - pubs.aip.org
Fundamental research and development of ultra-wide bandgap (UWBG) semiconductor
devices are under way to realize next-generation power conversion and wireless …

Temperature-dependent electrical characteristics of β-Ga2O3 diodes with W Schottky contacts up to 500° C

C Fares, F Ren, SJ Pearton - ECS Journal of Solid State Science …, 2018 - iopscience.iop.org
The development of thermally stable contacts capable of high temperature operation are
necessary for Ga 2 O 3 high power rectifiers. We have measured the electrical …