Ammonia Gas Sensor Response of a Vertical Zinc Oxide Nanorod-Gold Junction Diode at Room Temperature
Journal article
Tu, Y., Kyle, C., Luo, H., Zhang, D-W., Das, A., Briscoe, J., Dunn, S., Titirici, M-M. and Krause, S. (2020). Ammonia Gas Sensor Response of a Vertical Zinc Oxide Nanorod-Gold Junction Diode at Room Temperature. ACS Sensors. 5 (11), pp. 3568-3575. https://doi.org/10.1021/acssensors.0c01769
| Authors | Tu, Y., Kyle, C., Luo, H., Zhang, D-W., Das, A., Briscoe, J., Dunn, S., Titirici, M-M. and Krause, S. |
|---|---|
| Abstract | Conventional metal oxide semiconductor (MOS) gas sensors have been investigated for decades to protect our life and property. However, the traditional devices can hardly fulfill the requirements of our fast developing mobile society, because the high operating temperatures greatly limit their applications in battery-loaded portable systems that can only drive devices with low power consumption. As ammonia is gaining importance in the production and storage of hydrogen, there is an increasing demand for energy-efficient ammonia detectors. Hence, in this work, a Schottky diode resulting from the contact between zinc oxide nanorods and gold is designed to detect gaseous ammonia at room temperature with a power consumption of 625 μW. The Schottky diode gas sensors benefit from the change of barrier height in different gases as well as the catalytic effect of gold nanoparticles. This diode structure, fabricated without expensive interdigitated electrodes and displaying excellent performance at room temperature, provides a novel method to equip mobile devices with MOS gas sensors. |
| Year | 2020 |
| Journal | ACS Sensors |
| Journal citation | 5 (11), pp. 3568-3575 |
| Publisher | American Chemical Society (ACS) |
| ISSN | 2379-3694 |
| Digital Object Identifier (DOI) | https://doi.org/10.1021/acssensors.0c01769 |
| Publication dates | |
| Online | 28 Oct 2020 |
| Publication process dates | |
| Accepted | 13 Oct 2020 |
| Deposited | 03 Nov 2020 |
| Accepted author manuscript | License File Access Level Open |
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Accepted author manuscript
 | Schottky diode gas sensor ACS Sensors V2 corr V2.docx | |
| License: CC BY 4.0 | ||
| File access level: Open | ||
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