Effects of Channel Length Scaling on the Signal-to-Noise Ratio in FET-Type Gas Sensor With Horizontal Floating-Gate

Article Materials Science, Ceramics

Ultrasensitive NO2 gas sensing performance of two dimensional ZnO nanomaterials: Nanosheets and nanoplates

To Thi Nguyet et al.

Summary: The ultra-thin ZnO nanoplates exhibit significantly improved sensing performance for NO2 gas detection compared to the nanosheets, thanks to their high specific surface area and very small thickness.

CERAMICS INTERNATIONAL (2021)

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Article Chemistry, Physical

Three-dimensional carbon foam supported NiO nanosheets as non-enzymatic electrochemical H2O2 sensors

Minmin Liu et al.

Summary: In this study, two-dimensional nickel oxide nanosheets were uniformly grown on a three-dimensional carbon foam network through a solvothermal reaction and annealing. The composite exhibited excellent performance in non-enzymatic detecting H2O2, making it a promising candidate for quantitative electrochemical detection.

APPLIED SURFACE SCIENCE (2021)

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Article Chemistry, Analytical

Improved signal-to-noise-ratio of FET-type gas sensors using body bias control and embedded micro-heater

Wonjun Shin et al.

Summary: This study shows that applying a forward body-to-source junction bias to Si metal-oxide-silicon FET-type gas sensor can significantly reduce noise and increase the signal-to-noise ratio of the sensor, leading to a significant improvement in the detection limit for NO2 gas.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

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Review Chemistry, Analytical

FET-type gas sensors: A review

Seongbin Hong et al.

Summary: This paper reviews the evolution and recent trends of FET-type gas sensors, focusing on different types of FET gas sensors, their device structure, operating principles, advantages and disadvantages, sensing properties, and methods to enhance performance. Additionally, it introduces a pre-bias scheme to improve sensing characteristics and discusses the key characteristics and development direction of FET gas sensors embedded with low-power micro-heaters.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

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Review Physics, Condensed Matter

Gas sensing materials roadmap

Huaping Wang et al.

Summary: Gas sensor technology is widely utilized in various fields and continuous efforts are made to improve selectivity, sensitivity, and power consumption. Research has focused on the sensing layer, with emerging materials like nanocomposites and two-dimensional materials gaining interest. This roadmap aims to discuss the current status, progress, and challenges in gas sensing materials for future applications.

JOURNAL OF PHYSICS-CONDENSED MATTER (2021)

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Article Chemistry, Analytical

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

Gyuweon Jung et al.

Summary: The newly designed FET-type gas sensor platform has higher power efficiency and stability, capable of operating at low power for low-concentration gas detection. By using low thermal conductivity electrode metals and an efficient heat insulating air gap design, the heater temperature is increased and the sensor sensitivity is improved.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

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Article Engineering, Electrical & Electronic

On Noise Performance of Dual-Gated Silicon FET Biosensors With Schottky Contacts

Wuran Gao et al.

Summary: The study analyzed the low-frequency noise of dual-gated field-effect transistor biosensors with Schottky contacts, finding that the flicker noise at the sensing insulator-semiconductor interface was the major noise source. Additionally, the research suggested that the DG structure offers advantages over its single-gated counterpart in terms of signal gain.

IEEE TRANSACTIONS ON ELECTRON DEVICES (2021)

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Article Engineering, Electrical & Electronic

Selective ethanol gas sensing performance of flower-shaped CuO composed of thin nanoplates

Ahmad Umar et al.

Summary: A highly sensitive and selective ethanol gas sensor based on flower-shaped CuO composed of thin nanoplates was fabricated and characterized. The sensor showed a high sensing response of 241% at optimum conditions, demonstrated outstanding selectivity toward ethanol gas, and the gas response mechanism was explained based on the ionosorption model.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2021)

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Review Chemistry, Multidisciplinary

Boosting the sensing properties of resistive-based gas sensors by irradiation techniques: a review

Sanjit Manohar Majhi et al.

Summary: The focus of the research is on improving the performance of gas sensors, including high sensitivity, good selectivity, and durability. Utilizing various irradiation techniques for research can contribute to the development of highly reliable sensors for assessing environmental and health situations.

NANOSCALE (2021)

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Article Nanoscience & Nanotechnology