Recent Advances in Photo-Activated Chemical Sensorsopen access
- Authors
- Lee, Dong Hyun; Yoo, Hocheon
- Issue Date
- Dec-2022
- Publisher
- MDPI
- Keywords
- photo-activated gas detectors; ultraviolet; visible light; nitric oxide; nitric dioxide; formaldehyde; ammonia
- Citation
- SENSORS, v.22, no.23
- Journal Title
- SENSORS
- Volume
- 22
- Number
- 23
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/86687
- DOI
- 10.3390/s22239228
- ISSN
- 1424-8220
- Abstract
- Gas detectors have attracted considerable attention for monitoring harmful gases and air pollution because of industry development and the ongoing interest in human health. On the other hand, conventional high-temperature gas detectors are unsuitable for safely detecting harmful gases at high activation temperatures. Photo-activated gas detectors improve gas sensing performance at room temperature and enable low-power operation. This review presents a timely overview of photo-activated gas detectors that use illuminated light instead of thermal energy. Illuminated light assists in gas detection and is classified as visible or ultraviolet light. The research on photo-activated gas detectors is organized according to the type of gas that can be intensively detected. In addition, a development strategy for advancing photo-activated gas detectors is discussed.
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