Results 11 to 20 of about 15,181 (229)

Nanoscale Optical Inhomogeneities From Compositional Segregation Within Individual GaN-on-Si Quantum Wells. [PDF]

open access: yesAdv Sci (Weinh)
This work visualizes local variations in luminescence and relates them to nanoscale chemical inhomogeneities in single InxGa1−xN quantum wells. We demonstrate that the elemental segregation is only inherent to quantum wells with high indium content. Density functional theory shows this to be the result of strain‐induced phase stabilization, explaining ...
Chung JY   +12 more
europepmc   +2 more sources

Design of High Frequency Single and Double Gate Laterally-Contacted InGaAs/InAlAs HEMTs [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2019
Background and Objectives: High electron mobility transistors (HEMTs) are designed so that they are able to work at higher frequencies than conventional transistors and this has made them an attractive topic of research.Methods: Two developed designs of ...
Z. Kordrostami, S. Hamedi, F. Khalifeh
doaj   +1 more source

Improvement of AlGaN/GaN High-Electron-Mobility Transistor Radio Frequency Performance Using Ohmic Etching Patterns for Ka-Band Applications

open access: yesMicromachines, 2023
In this paper, AlGaN/GaN high-electron-mobility transistors (HEMTs) with ohmic etching patterns (OEPs) “fabricated to improve device radio frequency (RF) performance for Ka-band applications” are reported.
Ming-Wen Lee   +4 more
doaj   +1 more source

Dynamic characteristics after bias stress of GaN HEMTs with field plate on free‐standing GaN substrate

open access: yesElectronics Letters, 2021
This paper investigates the electron trapping behaviour after bias stress in GaN high‐electron‐mobility transistors (HEMTs) fabricated on GaN substrate.
Qiang Ma, Yuji Ando, Akio Wakejima
doaj   +1 more source

Hot electron modelling of HEMTs [PDF]

open access: yes7th International Workshop on Computational Electronics. Book of Abstracts. IWCE (Cat. No.00EX427), 2001
The hot‐electron two‐dimensional HEMT with recessed gate is modelled by solving the Poisson, current continuity and energy transport equations consistently with the Schrödinger equation using a finite difference scheme. New expressions are used for the energy densities inside and outside the quantum wells.
Eric A. B. Cole   +2 more
openaire   +1 more source

Review on Main Gate Characteristics of P-Type GaN Gate High-Electron-Mobility Transistors

open access: yesMicromachines, 2023
As wide bandgap semiconductors, gallium nitride (GaN) lateral high-electron-mobility transistors (HEMTs) possess high breakdown voltage, low resistance and high frequency performance.
Zhongxu Wang   +5 more
doaj   +1 more source

Substrate Effects on the Electrical Properties in GaN-Based High Electron Mobility Transistors

open access: yesCrystals, 2021
We report the electrical characteristics of GaN-based high electron mobility transistors (HEMTs) operated on various substrates/films. For the detailed investigation and comparison of the electrical properties of GaN-based HEMTs according to the ...
Sung-Jae Chang   +10 more
doaj   +1 more source

AlN/GaN-based MOS-HEMT technology: processing and device results [PDF]

open access: yes, 2011
Process development of AlN/GaN MOS-HEMTs is presented, along with issues and problems concerning the fabrication processes. The developed technology uses thermally grown Al<sub>2</sub>O<sub>3</sub> as a gate dielectric and surface
Wasige, E.   +5 more
core   +1 more source

50-nm self-aligned and 'standard' T-gate InP pHEMT comparison: the influence of parasitics on performance at the 50-nm node [PDF]

open access: yes, 2006
Continued research into the development of III-V high-electron mobility transistors (HEMTs), specifically the minimization of the device gate length, has yielded the fastest performance reported for any three terminal devices to date.
Elgaid, Khaled   +11 more
core   +1 more source

Impact of temperature-dependent series resistance on the operation of AlGaN/GaN high electron mobility transistors

open access: yesAIP Advances, 2021
AlGaN/GaN high electron mobility transistors (HEMTs) possess excellent electrical and thermal properties. In this study, we examined the electrical performance of AlGaN/GaN HEMTs to clarify the operational mechanism of the device with temperature ...
Dae-Young Jeon   +3 more
doaj   +1 more source

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