| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2024: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2023: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2022: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Outline of Final Research Achievements |
Semiconductor gas sensors operate by changing their resistance values in response to gas adsorption and reactions on the surface of the semiconductor sensing film. Understanding this mechanism is extremely important for designing highly sensitive and selective devices. In this study, we investigated the detection mechanism of volatile organic compounds in gas sensors using oxide nanomaterials by operando spectroscopic measurement techniques. Using operando DRIFTS spectroscopy and DFT calculations, we investigated the ethanol detection mechanism of ZnO nanorods and found that the dehydrogenation reaction from ethanol to acetaldehyde and the subsequent oxidation reaction to acetic acid are important reactions in ethanol detection.
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