Gas Sensors: From Fundamental Research to Applications
A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "C：Chemistry".
Deadline for manuscript submissions: 31 October 2024 | Viewed by 43
Special Issue Editor
Special Issue Information
Dear Colleagues,
Gas sensors are devices that can detect the composition of gases in the air, and are widely used in fields such as environmental monitoring, safety monitoring, healthcare and industrial control.
Gas sensors work on a variety of principles, and some of the most common include electrochemical, semiconductor and infrared sensors. Electrochemical sensors use the principle of electrochemical reaction to react gas with electrodes to generate current signals. Semiconductor sensors detect fluctuations in the conductivity of a semiconductor with changing gas concentration. Infrared sensors, on the other hand, determine the gas concentration by measuring the infrared radiation generated by the vibration of gas molecules.
Gas sensors have high sensitivity and accuracy and are capable of detecting very low concentrations of gases. Moreover, gas sensors have a fast response time and can monitor changes in gas concentration in real time. In addition, gas sensors have good selectivity and stability, enabling the accurate detection of specific gases in complex environments.
However, gas sensors have some limitations. For example, they are susceptible to environmental factors such as temperature and humidity and may exhibit cross-talk for certain gases, resulting in inaccurate detection results.
In conclusion, gas sensors are important and practical detection devices which can help us better understand and control the gas composition in the air, protect human health and safety and improve industrial production. With the development of science and technology, the performance of gas sensors in terms of factors such as sensitivity, accuracy and response speed will continue to improve and their field of application will continue to expand.
We look forward to receiving your submissions.
Dr. Pengfei Cheng
Guest Editor
Manuscript Submission Information
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Keywords
- gas sensors
- MEMS sensor arrays
- gas sensors device applications
- electronic nose system
- micro- and nano-preparation
- micro-control
- semiconductor crystal structure
