Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds
The efficient detection of volatile organic compounds (VOCs) is critically important in the domains of environmental protection, healthcare, and industrial safety. The development of metal oxide semiconductor (MOS) heterojunction gas-sensing materials is considered one of the most effective strategi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/12/12/244 |
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| author | Shengming Zhang Heng Zhang Haiyu Yao Peijie Wang Min Zhu Xuerong Shi Shusheng Xu |
| author_facet | Shengming Zhang Heng Zhang Haiyu Yao Peijie Wang Min Zhu Xuerong Shi Shusheng Xu |
| author_sort | Shengming Zhang |
| collection | DOAJ |
| description | The efficient detection of volatile organic compounds (VOCs) is critically important in the domains of environmental protection, healthcare, and industrial safety. The development of metal oxide semiconductor (MOS) heterojunction gas-sensing materials is considered one of the most effective strategies to enhance sensor performance. This review summarizes and discusses the types of heterojunctions and their working principles, enhancement strategies, preparation methodologies, and applications in acetone and ethanol detection. To address the constraints pertaining to low sensitivity, sluggish response/recovery times, and elevated operating temperatures that are inherent in VOC sensors, several improvement methods are proposed, including doping with metals like Ag and Pd, incorporating additives such as MXene and polyoxometalates, optimizing morphologies through a fine design, and self-doping via oxygen vacancies. Furthermore, this work provides insights into the challenges faced by MOSs heterojunction-based gas sensors and outlines future research directions in this field. This review will contribute to foundational theories to overcome existing bottlenecks in MOS heterojunction technology while promoting its large-scale application in disease screening or agricultural food quality assessments. |
| format | Article |
| id | doaj-art-a740126f87d441cbaed40ca96f92fa14 |
| institution | DOAJ |
| issn | 2227-9040 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj-art-a740126f87d441cbaed40ca96f92fa142025-08-20T02:57:07ZengMDPI AGChemosensors2227-90402024-11-01121224410.3390/chemosensors12120244Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic CompoundsShengming Zhang0Heng Zhang1Haiyu Yao2Peijie Wang3Min Zhu4Xuerong Shi5Shusheng Xu6School of Material Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Material Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Material Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Material Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Material Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Material Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Material Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaThe efficient detection of volatile organic compounds (VOCs) is critically important in the domains of environmental protection, healthcare, and industrial safety. The development of metal oxide semiconductor (MOS) heterojunction gas-sensing materials is considered one of the most effective strategies to enhance sensor performance. This review summarizes and discusses the types of heterojunctions and their working principles, enhancement strategies, preparation methodologies, and applications in acetone and ethanol detection. To address the constraints pertaining to low sensitivity, sluggish response/recovery times, and elevated operating temperatures that are inherent in VOC sensors, several improvement methods are proposed, including doping with metals like Ag and Pd, incorporating additives such as MXene and polyoxometalates, optimizing morphologies through a fine design, and self-doping via oxygen vacancies. Furthermore, this work provides insights into the challenges faced by MOSs heterojunction-based gas sensors and outlines future research directions in this field. This review will contribute to foundational theories to overcome existing bottlenecks in MOS heterojunction technology while promoting its large-scale application in disease screening or agricultural food quality assessments.https://www.mdpi.com/2227-9040/12/12/244heterojunctionacetoneethanolchemiresistivevolatile organic compounds |
| spellingShingle | Shengming Zhang Heng Zhang Haiyu Yao Peijie Wang Min Zhu Xuerong Shi Shusheng Xu Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds Chemosensors heterojunction acetone ethanol chemiresistive volatile organic compounds |
| title | Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds |
| title_full | Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds |
| title_fullStr | Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds |
| title_full_unstemmed | Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds |
| title_short | Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds |
| title_sort | recent advances in metal oxide semiconductor heterojunctions for the detection of volatile organic compounds |
| topic | heterojunction acetone ethanol chemiresistive volatile organic compounds |
| url | https://www.mdpi.com/2227-9040/12/12/244 |
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