Functionalized-graphene sensor on the hydrophobic surface for the selective detection of ppb-level volatile organic compounds (VOCs)
| Project/Area Number |
21K14510
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 28050:Nano/micro-systems-related
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| Research Institution | The University of Tokyo (2022-2023)
Japan Advanced Institute of Science and Technology (2021) |
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Principal Investigator |
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | Graphene / SAW sensor / Zeolite / Ethanol / Activated carbon / Gas sensor / Hydrophobic / Volatile gas molecules / Nanosensor |
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| Outline of Research at the Start |
The research aims to (1) demonstrate the novel method to reduce the adsorption of oxygen and water molecules on graphene nanoribbon field-effect transistor (GNR-FET) with fluoropolymer GNR (FGNR) as a dielectric and hydrophobic layer, (2) detect multiple volatile organic compounds (VOC) with 1 ppt sensitive and selective detection of individual VOC gas molecules.
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| Outline of Annual Research Achievements |
we fabricated partially suspended monolayer graphene surface acoustic wave gas sensors (G-SAWs) with a love-mode wave to effectively detect ppt-level acetone gas molecules at room temperature. The sputtered SiO2 thin film on the surface of a black 36°YX-LiTaO3 (B-LT) substrate acted as a guiding layer, effectively reducing the noise and insertion loss. The G-SAWs exhibited enhanced gas response towards acetone gas molecules (800 ppt) in a real-time atmosphere. The high sensitivity of the G-SAW sensor can be attributed to the elasticity and surface roughness of the SiO2 film. In addition, the G-SAW sensor exhibited rapid response and recovery at room temperature. This study provides a potential strategy for diagnosing different stages of diabetes in the human body.
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Report
(3 results)
Research Products
(29 results)
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[Journal Article] Synergistic Fabrication, Characterization, and Prospective Optoelectronic Applications of DES grafted Activated Charcoal Dispersed PVA Films2024
Author(s)
Lokesh Kumar S, Binish C J, J.Rajprasad, Sumaiya Tabassum, Vivekananthan Sadaiyandi, Sankar Ganesh Ramaraj, Mohammad Ahmad Wadaan, Nikolai Ivanovich Vatin, Santhosh Govindaraju, Vijayasankar A V
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Journal Title
Wiley Polymer for Advanced
Volume: -
Related Report
Peer Reviewed / Int'l Joint Research
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