A comprehensive review of gallium nitride (GaN)-based gas sensors and their dynamic responses

Y Jiang, W Li, F Du, R Sokolovskij, Y Zhang… - Journal of Materials …, 2023 - pubs.rsc.org
Gas-sensing technology that is ubiquitous has progressively gained significance in our daily
lives. There is a growing requirement for real-time, dependable and low-concentration gas …

Physics and chemistry of nitrogen dioxide (NO2) adsorption on gallium nitride (GaN) surface and its interaction with the yellow-luminescence-associated surface state

Y Turkulets, N Shauloff, OH Chaulker, R Jelinek… - Journal of Colloid and …, 2025 - Elsevier
Surface states have been a longstanding and sometimes underestimated problem in gallium
nitride (GaN) based devices. The instability caused by surface-charge-trapping in GaN …

High Electron Mobility Transistor (HEMT) based hydrogen sensor for deep-surface applications: Effect of Air and N2 atmosphere

MIB Taher, M Kumar, Y Halfaya, M Lazerges… - International Journal of …, 2024 - Elsevier
The detection of hydrogen in the Earth's deep underground poses a major challenge due to
the lack of oxygen and continuous changes in environmental conditions. An innovative class …

High-performance nitrogen dioxide gas sensor for ppb-level detection based on GaN nanoshuttles

Y Chen, D Han, D Li, X He, Z Liu, X Liu, S Sang… - Microchemical …, 2023 - Elsevier
GaN nanoshuttles have been successfully fabricated via facile hydrothermal and further
nitridation method. The morphology and structure indicate that GaN nanoshuttles have large …

Performance optimization of nitrogen dioxide gas sensor based on Pd-AlGaN/GaN HEMTs by gate bias modulation

VC Nguyen, K Kim, H Kim - Micromachines, 2021 - mdpi.com
We investigated the sensing characteristics of NO2 gas sensors based on Pd-AlGaN/GaN
high electron mobility transistors (HEMTs) at high temperatures. In this paper, we …

Quantum Dots-Sensitized High Electron Mobility Transistor (HEMT) for Sensitive NO2 Detection

Z Hu, L Zhou, L Li, B Ying, Y Zhao, P Wang, H Li… - Chemosensors, 2023 - mdpi.com
Colloidal quantum dots (CQDs) are gaining increasing attention for gas sensing applications
due to their large surface area and abundant active sites. However, traditional resistor-type …

Multifunctional Plasmonic Sensor for Excellent UV Photodetection and NO2 Gas Sensing by an Array of Al Nanocaps on GaN Truncated Nanocones

YP Kuang, A Dubey, R Ranjan, HY Tsai… - Advanced Optical …, 2023 - Wiley Online Library
Plasmonics has been demonstrated to improve the performance of various optoelectronic
devices operating in the infrared to visible wavelength regime. However, limited by optical …

Investigation of thin-barrier AlGaN/GaN HEMT heterostructures for enhanced gas-sensing performance

A Ranjan, R Lingaparthi, N Dharmarasu… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
In this study, a theoretical relationship between two-dimensional electron gas (2DEG)
properties of AlGaN/GaN high-electron-mobility transistor (HEMT) hetero-structure and …

NO2 adsorption on GaN surface and its interaction with the yellow-luminescence-associated surface state

Y Turkulets, N Shauloff, OH Chaulker, R Jelinek… - arXiv preprint arXiv …, 2024 - arxiv.org
Trapping of charge at surface states is a longstanding problem in GaN that hinders a full
realization of its potential as a semiconductor for microelectronics. At least part of this charge …