금속 산화물 가스 센서의 광 활성화 센싱 메커니즘
- Title
- 금속 산화물 가스 센서의 광 활성화 센싱 메커니즘
- Other Titles
- Light-activated mechanism for metal oxide gas sensors
- Author
- 김현우
- Keywords
- Gas sensors; Metal oxide semiconductors; ZnO; SnO2; Light activation; Adsorption.
- Issue Date
- 2021-10
- Publisher
- 한국센서학회
- Citation
- JOURNAL OF SENSOR SCIENCE AND TECHNOLOGY, v. 30, NO. 6, Page. 381-383
- Abstract
- Light-activated metal oxide gas sensors have been investigated in recent decades. Light illumination enhances the sensing attributes, including the operational temperature, sensitivity, and selectivity. Unfortunately, high operating temperature is a major problem for gas sensors because of the huge energy consumption. Therefore, the importance of light-activated room-temperature sensing has increased. This paper reviews recent light-activated sensors and their sensing mechanisms with a specific focus on metal oxide gas sensors. Studies use the outstanding ZnO and SnO2 sensors to research photoactivation when illuminated by various sources such as ultraviolet (UV), halogen lamp, or monochromatic light. Photon induction generates electron-hole pairs that increase the number of adsorption sites of gas molecules and ions improving the sensor’s sensing properties.
- URI
- http://jsstec.org/_common/do.php?a=full&bidx=2766&aidx=31251https://repository.hanyang.ac.kr/handle/20.500.11754/178178
- ISSN
- 1225-5475;2093-7563
- DOI
- 10.46670/JSST.2021.30.6.381
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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- 금속 산화물 가스 센서의 광 활성화 센싱 메커니즘.pdfDownload
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