The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm Range
We discuss the fabrication of gas-analytical multisensor arrays based on ZnO nanorods grown via a hydrothermal route directly on a multielectrode chip. The protocol to deposit the nanorods over the chip includes the primary formation of ZnO nano-clusters over the surface and secondly the oxide hydro...
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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/1424-8220/19/19/4265 |
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| author | Anton Bobkov Alexey Varezhnikov Ilya Plugin Fedor S. Fedorov Vanessa Trouillet Udo Geckle Martin Sommer Vladimir Goffman Vyacheslav Moshnikov Victor Sysoev |
| author_facet | Anton Bobkov Alexey Varezhnikov Ilya Plugin Fedor S. Fedorov Vanessa Trouillet Udo Geckle Martin Sommer Vladimir Goffman Vyacheslav Moshnikov Victor Sysoev |
| author_sort | Anton Bobkov |
| collection | DOAJ |
| description | We discuss the fabrication of gas-analytical multisensor arrays based on ZnO nanorods grown via a hydrothermal route directly on a multielectrode chip. The protocol to deposit the nanorods over the chip includes the primary formation of ZnO nano-clusters over the surface and secondly the oxide hydrothermal growth in a solution that facilitates the appearance of ZnO nanorods in the high aspect ratio which comprise a network. We have tested the proof-of-concept prototype of the ZnO nanorod network-based chip heated up to 400 °C versus three alcohol vapors, ethanol, isopropanol and butanol, at approx. 0.2−5 ppm concentrations when mixed with dry air. The results indicate that the developed chip is highly sensitive to these analytes with a detection limit down to the sub-ppm range. Due to the pristine differences in ZnO nanorod network density the chip yields a vector signal which enables the discrimination of various alcohols at a reasonable degree via processing by linear discriminant analysis even at a sub-ppm concentration range suitable for practical applications. |
| first_indexed | 2024-04-11T14:07:44Z |
| format | Article |
| id | doaj.art-222835be84b24d34bbdd1d09271bf8f0 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T14:07:44Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-222835be84b24d34bbdd1d09271bf8f02022-12-22T04:19:49ZengMDPI AGSensors1424-82202019-10-011919426510.3390/s19194265s19194265The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm RangeAnton Bobkov0Alexey Varezhnikov1Ilya Plugin2Fedor S. Fedorov3Vanessa Trouillet4Udo Geckle5Martin Sommer6Vladimir Goffman7Vyacheslav Moshnikov8Victor Sysoev9Department of Micro- and Nanoelectronics, St. Petersburg Electrotechnical University “LETI”, 197022 St. Petersburg, RussiaPhysico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, RussiaPhysico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, RussiaPhysico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, RussiaInstitute for Applied Materials, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyInstitute for Applied Materials, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyInstitute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyPhysico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, RussiaDepartment of Micro- and Nanoelectronics, St. Petersburg Electrotechnical University “LETI”, 197022 St. Petersburg, RussiaPhysico-Technical Institute, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., 410054 Saratov, RussiaWe discuss the fabrication of gas-analytical multisensor arrays based on ZnO nanorods grown via a hydrothermal route directly on a multielectrode chip. The protocol to deposit the nanorods over the chip includes the primary formation of ZnO nano-clusters over the surface and secondly the oxide hydrothermal growth in a solution that facilitates the appearance of ZnO nanorods in the high aspect ratio which comprise a network. We have tested the proof-of-concept prototype of the ZnO nanorod network-based chip heated up to 400 °C versus three alcohol vapors, ethanol, isopropanol and butanol, at approx. 0.2−5 ppm concentrations when mixed with dry air. The results indicate that the developed chip is highly sensitive to these analytes with a detection limit down to the sub-ppm range. Due to the pristine differences in ZnO nanorod network density the chip yields a vector signal which enables the discrimination of various alcohols at a reasonable degree via processing by linear discriminant analysis even at a sub-ppm concentration range suitable for practical applications.https://www.mdpi.com/1424-8220/19/19/4265zinc oxidenanorodgas sensormultisensor arrayselectivitysensitivityethanolisopropanolbutanol |
| spellingShingle | Anton Bobkov Alexey Varezhnikov Ilya Plugin Fedor S. Fedorov Vanessa Trouillet Udo Geckle Martin Sommer Vladimir Goffman Vyacheslav Moshnikov Victor Sysoev The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm Range Sensors zinc oxide nanorod gas sensor multisensor array selectivity sensitivity ethanol isopropanol butanol |
| title | The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm Range |
| title_full | The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm Range |
| title_fullStr | The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm Range |
| title_full_unstemmed | The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm Range |
| title_short | The Multisensor Array Based on Grown-On-Chip Zinc Oxide Nanorod Network for Selective Discrimination of Alcohol Vapors at Sub-ppm Range |
| title_sort | multisensor array based on grown on chip zinc oxide nanorod network for selective discrimination of alcohol vapors at sub ppm range |
| topic | zinc oxide nanorod gas sensor multisensor array selectivity sensitivity ethanol isopropanol butanol |
| url | https://www.mdpi.com/1424-8220/19/19/4265 |
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