Advances in Hydrogen, Carbon Dioxide, and Hydrocarbon Gas Sensor Technology Using GaN and ZnO-Based Devices
In this paper, we review our recent results in developing gas sensors for hydrogen using various device structures, including ZnO nanowires and GaN High Electron Mobility Transistors (HEMTs). ZnO nanowires are particularly interesting because they have a large surface area to volume ratio, which wil...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2009-06-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/9/6/4669/ |
| _version_ | 1798006395620032512 |
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| author | Jenshan Lin Chih-Yang Chang Hung-Ta Wang Byoung Sam Kang Travis Anderson Fan Ren Stephen Pearton |
| author_facet | Jenshan Lin Chih-Yang Chang Hung-Ta Wang Byoung Sam Kang Travis Anderson Fan Ren Stephen Pearton |
| author_sort | Jenshan Lin |
| collection | DOAJ |
| description | In this paper, we review our recent results in developing gas sensors for hydrogen using various device structures, including ZnO nanowires and GaN High Electron Mobility Transistors (HEMTs). ZnO nanowires are particularly interesting because they have a large surface area to volume ratio, which will improve sensitivity, and because they operate at low current levels, will have low power requirements in a sensor module. GaN-based devices offer the advantage of the HEMT structure, high temperature operation, and simple integration with existing fabrication technology and sensing systems. Improvements in sensitivity, recoverability, and reliability are presented. Also reported are demonstrations of detection of other gases, including CO2 and C2H4 using functionalized GaN HEMTs. This is critical for the development of lab-on-a-chip type systems and can provide a significant advance towards a market-ready sensor application. |
| first_indexed | 2024-04-11T12:54:03Z |
| format | Article |
| id | doaj.art-751dc56fa2014b69ad1cdd210a22d045 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:54:03Z |
| publishDate | 2009-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-751dc56fa2014b69ad1cdd210a22d0452022-12-22T04:23:07ZengMDPI AGSensors1424-82202009-06-01964669469410.3390/s90604669Advances in Hydrogen, Carbon Dioxide, and Hydrocarbon Gas Sensor Technology Using GaN and ZnO-Based DevicesJenshan LinChih-Yang ChangHung-Ta WangByoung Sam KangTravis AndersonFan RenStephen PeartonIn this paper, we review our recent results in developing gas sensors for hydrogen using various device structures, including ZnO nanowires and GaN High Electron Mobility Transistors (HEMTs). ZnO nanowires are particularly interesting because they have a large surface area to volume ratio, which will improve sensitivity, and because they operate at low current levels, will have low power requirements in a sensor module. GaN-based devices offer the advantage of the HEMT structure, high temperature operation, and simple integration with existing fabrication technology and sensing systems. Improvements in sensitivity, recoverability, and reliability are presented. Also reported are demonstrations of detection of other gases, including CO2 and C2H4 using functionalized GaN HEMTs. This is critical for the development of lab-on-a-chip type systems and can provide a significant advance towards a market-ready sensor application.http://www.mdpi.com/1424-8220/9/6/4669/GaNZnOgas sensors |
| spellingShingle | Jenshan Lin Chih-Yang Chang Hung-Ta Wang Byoung Sam Kang Travis Anderson Fan Ren Stephen Pearton Advances in Hydrogen, Carbon Dioxide, and Hydrocarbon Gas Sensor Technology Using GaN and ZnO-Based Devices Sensors GaN ZnO gas sensors |
| title | Advances in Hydrogen, Carbon Dioxide, and Hydrocarbon Gas Sensor Technology Using GaN and ZnO-Based Devices |
| title_full | Advances in Hydrogen, Carbon Dioxide, and Hydrocarbon Gas Sensor Technology Using GaN and ZnO-Based Devices |
| title_fullStr | Advances in Hydrogen, Carbon Dioxide, and Hydrocarbon Gas Sensor Technology Using GaN and ZnO-Based Devices |
| title_full_unstemmed | Advances in Hydrogen, Carbon Dioxide, and Hydrocarbon Gas Sensor Technology Using GaN and ZnO-Based Devices |
| title_short | Advances in Hydrogen, Carbon Dioxide, and Hydrocarbon Gas Sensor Technology Using GaN and ZnO-Based Devices |
| title_sort | advances in hydrogen carbon dioxide and hydrocarbon gas sensor technology using gan and zno based devices |
| topic | GaN ZnO gas sensors |
| url | http://www.mdpi.com/1424-8220/9/6/4669/ |
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