Ohmic contacts to Gallium Nitride materials

G Greco, F Iucolano, F Roccaforte - Applied Surface Science, 2016 - Elsevier
In this review article, a comprehensive study of the mechanisms of Ohmic contact formation
on GaN-based materials is presented. After a brief introduction on the physics of Ohmic …

Ga2O3 and Related Ultra-Wide Bandgap Power Semiconductor Oxides: New Energy Electronics Solutions for CO2 Emission Mitigation

Z Chi, JJ Asher, MR Jennings, E Chikoidze… - Materials, 2022 - mdpi.com
Currently, a significant portion (~ 50%) of global warming emissions, such as CO2, are
related to energy production and transportation. As most energy usage will be electrical (as …

Demonstration of AlN Schottky barrier diodes with blocking voltage over 1 kV

H Fu, I Baranowski, X Huang, H Chen… - IEEE Electron …, 2017 - ieeexplore.ieee.org
This letter reports the first demonstration of 1-kV-class AlN Schottky barrier diodes on
sapphire substrates by metal organic chemical vapor deposition. The device structure …

Heteroepitaxial Beta-Ga2O3 on 4H-SiC for an FET With Reduced Self Heating

SAO Russell, A Pérez-Tomás… - IEEE Journal of the …, 2017 - ieeexplore.ieee.org
A method to improve thermal management of β-Ga 2 O 3 FETs is demonstrated here via
simulation of epitaxial growth on a 4H-SiC substrate. Using a recently published device as a …

Physics and technology of gallium nitride materials for power electronics

F Roccaforte, P Fiorenza, R Lo Nigro… - La Rivista del Nuovo …, 2018 - Springer
Owing to its exceptional physical and electronic properties, gallium nitride (GaN) is a
promising material that can find application in the fields of high-power and high-frequency …

Correlation between microstructure and temperature dependent electrical behavior of annealed Ti/Al/Ni/Au Ohmic contacts to AlGaN/GaN heterostructures

F Iucolano, G Greco, F Roccaforte - Applied Physics Letters, 2013 - pubs.aip.org
This letter reports on the temperature behavior of the structural and electrical properties of
Ti/Al/Ni/Au contacts to AlGaN/GaN heterostructures. While Ohmic contacts formed at 750 C …

Giant bulk photovoltaic effect in solar cell architectures with ultra-wide bandgap Ga2O3 transparent conducting electrodes

A Perez-Tomas, E Chikoidze, Y Dumont… - Materials today …, 2019 - Elsevier
The use of ultra-wide bandgap transparent conducting beta gallium oxide (β-Ga 2 O 3) thin
films as electrodes in ferroelectric solar cells is reported. In a new material structure for …

Recent development of gallium oxide thin film on GaN

HS Oon, KY Cheong - Materials science in semiconductor processing, 2013 - Elsevier
Gallium nitride (GaN) has attracted much attention due to its outstanding characteristics. It
may replace conventional semiconductor materials, such as silicon, that are approaching …

Tuning electrical and thermal transport in AlGaN/GaN heterostructures via buffer layer engineering

AS Yalamarthy, H So, M Muñoz Rojo… - Advanced Functional …, 2018 - Wiley Online Library
Progress in wide bandgap, III–V material systems based on gallium nitride (GaN) has
enabled the realization of high‐power and high‐frequency electronics. Since the highly …

A study of DC and RF transconductance for different technologies of HEMT at low and high temperatures

MA Alim, A Jarndal, C Gaquiere, G Crupi - Journal of Materials Science …, 2023 - Springer
We report on the measured effects of temperature on the DC and RF transconductance for
several important HEMT technologies. Six different HEMT transistors were evaluated. Single …