| 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 / Health care / Acetone / Ethanol / SAW sensor / Zeolite / 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 Final Research Achievements |
We have successfully functionalized metal nanoparticles and activated carbon molecular sieve on the surface of graphene nanoribbon FET with a size of 200 x 200 nm. 50 ppb concentration of Ethanol gas molecules was detected under 150°C using activated carbon molecular sieve functionalized graphene FET. In addition, Aluminum nanoparticles functionalized graphene showed exceptional sensitivity and selectivity towards ammonia gas molecules at real-time atmosphere. Furthermore, We have performed surface acoustic wave technique to detect even lower concentrations of acetone gas molecules. Graphene based surface acoustic wave gas sensor exhibited an enhanced gas response towards acetone gas molecules (800 ppt) under a real atmosphere.
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| Academic Significance and Societal Importance of the Research Achievements |
Scientific and social significance of your research achievements
We have achieved the detection of acetone molecules at parts per trillion at room temperature. Our device can be utilized to detect disease at an early stage in human beings and provide a healthy life to everyone.
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