| Budget Amount *help |
¥25,610,000 (Direct Cost: ¥19,700,000、Indirect Cost: ¥5,910,000)
Fiscal Year 2023: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
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| Outline of Final Research Achievements |
We succeeded in visualizing the phenomenon in which the surface structure of the biased gold, palladium, and platinum nanogap electrodes changes at atomic scale in gases by environmental transmission electron microscopy. The atomic arrangement on the electrode surface was disordered, and the atoms moved from the positive electrode to the negative electrode via field evaporation. We observed the phenomenon in which nanostructures of oxides and nitrides form and disappear on the nanogap electrode surface. Through simulations of the electric field and surface charge formed near the tip of a nanogap electrode, we found that the atomic and molecular dynamics on the nanogap electrode surface are correlated with the electric field strength.
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