Low-frequency noise in gas sensors: A review

W Shin, S Hong, Y Jeong, G Jung, J Park, D Kim… - Sensors and Actuators B …, 2023 - Elsevier
Semiconductor-based gas sensors have been applied to a variety of applications, including
environmental, safety, and health monitoring. Extensive efforts have been made to improve …

A Photovoltaic Self‐Powered Gas Sensor Based on All‐Dry Transferred MoS2/GaSe Heterojunction for ppb‐Level NO2 Sensing at Room Temperature

Y Niu, J Zeng, X Liu, J Li, Q Wang, H Li… - Advanced …, 2021 - Wiley Online Library
Traditional gas sensors are facing the challenge of low power consumption for future
application in smart phones and wireless sensor platforms. To solve this problem, self …

Transducer-Aware Hydroxy-Rich-Surface Indium Oxide Gas Sensor for Low-Power and High-Sensitivity NO2 Gas Sensing

G Jung, H Shin, SW Jeon, YH Lim, S Hong… - … Applied Materials & …, 2023 - ACS Publications
Low-power metal oxide (MOX)-based gas sensors are widely applied in edge devices. To
reduce power consumption, nanostructured MOX-based sensors that detect gas at low …

A low-power embedded poly-Si micro-heater for gas sensor platform based on a FET transducer and its application for NO2 sensing

G Jung, Y Hong, S Hong, D Jang, Y Jeong… - Sensors and Actuators B …, 2021 - Elsevier
Gas sensors are commercialized and widely applied in various fields. Existing commercial
sensors, however, have limitations in terms of power consumption. In this work, we propose …

Comparison of the characteristics of semiconductor gas sensors with different transducers fabricated on the same substrate

G Jung, W Shin, S Hong, Y Jeong, J Park, D Kim… - Sensors and Actuators B …, 2021 - Elsevier
The semiconductor-type gas sensor consists of a transducer and a sensing material. Most of
the research on the sensor has focused on sensing materials. In this study, the …

Microheater-integrated spectrally selective multiband mid-infrared nanoemitter for on-chip optical multigas sensing

Z Rahimian Omam, A Ghobadi, B Khalichi… - ACS Applied Nano …, 2023 - ACS Publications
Traditional optical gas sensors often require multiple components such as broadband
infrared sources, detectors, and band-pass filters to detect various target gases, resulting in …

Fully integrated FET-type gas sensor with optimized signal-to-noise ratio for H2S gas detection

W Shin, Y Jeong, S Hong, G Jung, J Park, D Kim… - Sensors and Actuators B …, 2022 - Elsevier
The focus of gas sensor research has been on improving the response of individual sensors.
However, in order to integrate sensors with CMOS circuits, a sensing system composed of …

Optimization of channel structure and bias condition for signal-to-noise ratio improvement in Si-based FET-type gas sensor with horizontal floating-gate

W Shin, G Jung, S Hong, Y Jeong, J Park, D Kim… - Sensors and Actuators B …, 2022 - Elsevier
Sensing performances of the Si-based field-effect transistor (FET)-type gas sensor are not
only affected by sensing material characteristics but also by electrical properties of a …

Effects of IGZO film thickness on H2S gas sensing performance: Response, excessive recovery, low-frequency noise, and signal-to-noise ratio

W Shin, D Kwon, M Ryu, J Kwon, S Hong… - Sensors and Actuators B …, 2021 - Elsevier
In this work, we investigate the effects of IGZO film thickness on the H 2 S gas sensing
performance, such as response, excess recovery, low-frequency noise (LFN), and signal-to …

Effects of channel length scaling on the signal-to-noise ratio in FET-type gas sensor with horizontal floating-gate

W Shin, S Hong, Y Jeong, G Jung… - IEEE Electron …, 2022 - ieeexplore.ieee.org
We investigate the channel length () scaling effects on the signal-to-noise ratio (SNR) of the
field-effect-transistor (FET)-type gas sensor with a horizontal floating-gate. A sensing layer …