Results 11 to 20 of about 1,205 (118)

Preparation and Performance of Gallium Nitride Powders with Preferred Orientation

open access: yesMATEC Web of Conferences, 2018
The paper prepared the III-V semiconductor, hexagonal wurtzite Gallium nitride powders by calcining a gallium oxide in flowing ammonia above 900 °C (1173K).
Kang Liping   +4 more
doaj   +2 more sources

Gallium nitride heterostructure field-effect transistor with a heat-removal system based on a trench in the passivation layer filled by a high thermal conductivity material

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2021
The self-heating effect poses a main problem for high-power electronic and optoelectronic devices based on gallium nitride. A non-uniform distribution of the dissipated power and a rise of the average temperature inside the gallium nitride ...
V. S. Volcheck, V. R. Stempitsky
doaj   +1 more source

Study of Elastic properties of Gallium Nitride doped Ferrite-Polypyrrole Nanocomposites [PDF]

open access: yesEPJ Web of Conferences
The present communication aims to investigate the influence of ferrite substitution in Gallium Nitride and Polypyrrole substitution in Gallium nitride ferrite nano composites. The interpretation was done by studying Infrared spectroscopy.
Indrakanti Rajani   +2 more
doaj   +1 more source

Isoelectronic aluminum-doped gallium nitride alpha-voltaic cell with efficiency exceeding 4.5%

open access: yesCommunications Materials, 2023
Although alpha-voltaic cells have shown great potential in unattended miniaturized systems for compact, long-lifetime and independence of external energy input, the power conversion efficiency of state-of the-art alpha-voltaic cells is still much lower ...
Runlong Gao   +11 more
doaj   +1 more source

Structural and optical properties of AlN/GaN and AlN/AlGaN/GaN thin films on silicon substrate prepared by plasma assisted molecular beam epitaxy (MBE)

open access: yesResults in Physics, 2019
In this study, the Aluminium Nitride/Gallium Nitride (AlN/GaN) layers and Aluminium Nitride/Aluminium Gallium Nitride/Gallium Nitride (AlN/AlGaN/GaN) layer heterostructures were successfully created using technique known as plasma-assisted molecular beam
Ho Xin Jing   +4 more
doaj   +1 more source

Native defects in gallium nitride [PDF]

open access: yesPhysical Review B, 1995
The results of an extensive theoretical study of native defects in hexagonal GaN are presented. We have considered cation and anion vacancies, antisites, and interstitials. The computations were carried out using ab initio molecular dynamics in supercells containing 72 atoms.
, Boguslawski, , Briggs, , Bernholc
openaire   +2 more sources

Unravelling the secrets of the resistance of GaN to strongly ionising radiation

open access: yesCommunications Physics, 2021
Gallium nitride is a wide bandgap semiconductor which is generally expected to replace some silicon-based technologies, despite some of its properties still requiring further investigation.
Miguel C. Sequeira   +11 more
doaj   +1 more source

Gallium nitride high electron mobility transistor with an effective graphene-based heat removal system

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2020
The self-heating effect is a major problem for gallium nitride electronic, optoelectronic and photonic devices. Average temperature increase and non-uniform distribution of dissipated power in the gallium nitride high electron mobility transistor lead to
V. S. Volcheck   +3 more
doaj   +1 more source

Numerical Simulation of Orthogonal Machining of Gallium Nitride via Smoothed Particle Hydrodynamics

open access: yesNUML International Journal of Engineering and Computing, 2022
Gallium Nitride is one of the best candidates for upcoming industrial revolution due to its superior electrical properties over silicon. In the present work, we investigate the chip formation, cutting force and effective stress in diamond machining of ...
Muhammad Haseeb   +2 more
doaj   +1 more source

Large Signal Performance of the Gallium Nitride Heterostructure Field-Effect Transistor With a Graphene Heat-Removal System

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2022
The self-heating effect exerts a considerable influence on the characteristics of high-power electronic and optoelectronic devices based on gallium nitride.
V. S. Volcheck, V. R. Stempitsky
doaj   +1 more source

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