Improving Gas-Sensing Performance Based on MOS Nanomaterials: A Review
In order to solve issues of air pollution, to monitor human health, and to promote agricultural production, gas sensors have been used widely. Metal oxide semiconductor (MOS) gas sensors have become an important area of research in the field of gas sensing due to their high sensitivity, quick respon...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/15/4263 |
| _version_ | 1797525371466285056 |
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| author | Shirui Xue Sicheng Cao Zhaoling Huang Daoguo Yang Guoqi Zhang |
| author_facet | Shirui Xue Sicheng Cao Zhaoling Huang Daoguo Yang Guoqi Zhang |
| author_sort | Shirui Xue |
| collection | DOAJ |
| description | In order to solve issues of air pollution, to monitor human health, and to promote agricultural production, gas sensors have been used widely. Metal oxide semiconductor (MOS) gas sensors have become an important area of research in the field of gas sensing due to their high sensitivity, quick response time, and short recovery time for NO<sub>2</sub>, CO<sub>2</sub>, acetone, etc. In our article, we mainly focus on the gas-sensing properties of MOS gas sensors and summarize the methods that are based on the interface effect of MOS materials and micro–nanostructures to improve their performance. These methods include noble metal modification, doping, and core-shell (C-S) nanostructure. Moreover, we also describe the mechanism of these methods to analyze the advantages and disadvantages of energy barrier modulation and electron transfer for gas adsorption. Finally, we put forward a variety of research ideas based on the above methods to improve the gas-sensing properties. Some perspectives for the development of MOS gas sensors are also discussed. |
| first_indexed | 2024-03-10T09:11:53Z |
| format | Article |
| id | doaj.art-44ef27a29246453293786fe7f6b435d8 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T09:11:53Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-44ef27a29246453293786fe7f6b435d82023-11-22T05:54:14ZengMDPI AGMaterials1996-19442021-07-011415426310.3390/ma14154263Improving Gas-Sensing Performance Based on MOS Nanomaterials: A ReviewShirui Xue0Sicheng Cao1Zhaoling Huang2Daoguo Yang3Guoqi Zhang4School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541000, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541000, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541000, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541000, ChinaSchool of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541000, ChinaIn order to solve issues of air pollution, to monitor human health, and to promote agricultural production, gas sensors have been used widely. Metal oxide semiconductor (MOS) gas sensors have become an important area of research in the field of gas sensing due to their high sensitivity, quick response time, and short recovery time for NO<sub>2</sub>, CO<sub>2</sub>, acetone, etc. In our article, we mainly focus on the gas-sensing properties of MOS gas sensors and summarize the methods that are based on the interface effect of MOS materials and micro–nanostructures to improve their performance. These methods include noble metal modification, doping, and core-shell (C-S) nanostructure. Moreover, we also describe the mechanism of these methods to analyze the advantages and disadvantages of energy barrier modulation and electron transfer for gas adsorption. Finally, we put forward a variety of research ideas based on the above methods to improve the gas-sensing properties. Some perspectives for the development of MOS gas sensors are also discussed.https://www.mdpi.com/1996-1944/14/15/4263MOS gas sensorsgas-sensing propertiesimprovement methodsgas-sensing mechanismresearch ideas |
| spellingShingle | Shirui Xue Sicheng Cao Zhaoling Huang Daoguo Yang Guoqi Zhang Improving Gas-Sensing Performance Based on MOS Nanomaterials: A Review Materials MOS gas sensors gas-sensing properties improvement methods gas-sensing mechanism research ideas |
| title | Improving Gas-Sensing Performance Based on MOS Nanomaterials: A Review |
| title_full | Improving Gas-Sensing Performance Based on MOS Nanomaterials: A Review |
| title_fullStr | Improving Gas-Sensing Performance Based on MOS Nanomaterials: A Review |
| title_full_unstemmed | Improving Gas-Sensing Performance Based on MOS Nanomaterials: A Review |
| title_short | Improving Gas-Sensing Performance Based on MOS Nanomaterials: A Review |
| title_sort | improving gas sensing performance based on mos nanomaterials a review |
| topic | MOS gas sensors gas-sensing properties improvement methods gas-sensing mechanism research ideas |
| url | https://www.mdpi.com/1996-1944/14/15/4263 |
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