| 研究課題/領域番号 |
21K14510
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分28050:ナノマイクロシステム関連
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| 研究機関 | 東京大学 (2022-2023)
北陸先端科学技術大学院大学 (2021) |
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研究代表者 |
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| 研究期間 (年度) |
2021-04-01 – 2024-03-31
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| 研究課題ステータス |
完了 (2023年度)
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| 配分額 *注記 |
4,160千円 (直接経費: 3,200千円、間接経費: 960千円)
2023年度: 1,300千円 (直接経費: 1,000千円、間接経費: 300千円)
2022年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
2021年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
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| キーワード | Graphene / SAW sensor / Zeolite / Ethanol / Activated carbon / Gas sensor / Hydrophobic / Volatile gas molecules / Nanosensor |
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| 研究開始時の研究の概要 |
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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| 研究実績の概要 |
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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