Single-Nanowire Fuse for Ionization Gas Detection
Local electric field enhancement is crucial to detect gases for an ionization gas sensor. Nanowires grown collectively along the identical lattice orientation have been claimed to show a strong tip effect in many previous studies. Herein, we propose a novel ionization gas detector structure by using...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/20/4358 |
| _version_ | 1811263607086776320 |
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| author | Hai Liu Wenhuan Zhu Yutong Han Zhi Yang Yizhong Huang |
| author_facet | Hai Liu Wenhuan Zhu Yutong Han Zhi Yang Yizhong Huang |
| author_sort | Hai Liu |
| collection | DOAJ |
| description | Local electric field enhancement is crucial to detect gases for an ionization gas sensor. Nanowires grown collectively along the identical lattice orientation have been claimed to show a strong tip effect in many previous studies. Herein, we propose a novel ionization gas detector structure by using a single crystalline silicon nanowire as one electrode that is placed above the prepatterned nanotips. A significant improvement of the local electric field in its radical direction was obtained leading to an ultralow operation voltage for gas breakdown. Different from the tip of the nanowire in the reported ionization gas sensors, the gaseous discharge current in this device flows towards the sidewall in the case of a trace amount of gas environment change. Technically, this discharge current brings about a sudden temperature rise followed by a fusion of the silicon nanowire. Such unique fusibility of a single nanowire in this gas detection device suggests a novel architecture that is portable and in-site executable and can be used as an integrated gas environmental monitor. |
| first_indexed | 2024-04-12T19:48:28Z |
| format | Article |
| id | doaj.art-2e0b3ba1e5754d6fb5de2f021ad0d82d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-12T19:48:28Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-2e0b3ba1e5754d6fb5de2f021ad0d82d2022-12-22T03:18:53ZengMDPI AGSensors1424-82202019-10-011920435810.3390/s19204358s19204358Single-Nanowire Fuse for Ionization Gas DetectionHai Liu0Wenhuan Zhu1Yutong Han2Zhi Yang3Yizhong Huang4Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University, 149 Yanchang Road, Shanghai 200072, ChinaNational Key Laboratory of Science and Technology on Micro/Nano Fabrication, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory of Thin Film and Microfabrication of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory of Thin Film and Microfabrication of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeLocal electric field enhancement is crucial to detect gases for an ionization gas sensor. Nanowires grown collectively along the identical lattice orientation have been claimed to show a strong tip effect in many previous studies. Herein, we propose a novel ionization gas detector structure by using a single crystalline silicon nanowire as one electrode that is placed above the prepatterned nanotips. A significant improvement of the local electric field in its radical direction was obtained leading to an ultralow operation voltage for gas breakdown. Different from the tip of the nanowire in the reported ionization gas sensors, the gaseous discharge current in this device flows towards the sidewall in the case of a trace amount of gas environment change. Technically, this discharge current brings about a sudden temperature rise followed by a fusion of the silicon nanowire. Such unique fusibility of a single nanowire in this gas detection device suggests a novel architecture that is portable and in-site executable and can be used as an integrated gas environmental monitor.https://www.mdpi.com/1424-8220/19/20/4358nano-electromechanical systemsnanosensorsingle nanowire devicegas detectors |
| spellingShingle | Hai Liu Wenhuan Zhu Yutong Han Zhi Yang Yizhong Huang Single-Nanowire Fuse for Ionization Gas Detection Sensors nano-electromechanical systems nanosensor single nanowire device gas detectors |
| title | Single-Nanowire Fuse for Ionization Gas Detection |
| title_full | Single-Nanowire Fuse for Ionization Gas Detection |
| title_fullStr | Single-Nanowire Fuse for Ionization Gas Detection |
| title_full_unstemmed | Single-Nanowire Fuse for Ionization Gas Detection |
| title_short | Single-Nanowire Fuse for Ionization Gas Detection |
| title_sort | single nanowire fuse for ionization gas detection |
| topic | nano-electromechanical systems nanosensor single nanowire device gas detectors |
| url | https://www.mdpi.com/1424-8220/19/20/4358 |
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