| Project/Area Number |
22656138
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Physical properties of metals
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥3,590,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | トンネル接合 / 電子触媒 / ホットエレクトロン |
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| Research Abstract |
Precise and tunable control in electronic states of the metal surface should be directly linked to a novel catalytic reaction. Metal-insulator-metal (MIM)tunnel junction, which generates monochromatic hot-electrons under bias-voltage, would be one of the suitable devices for the hot-electron generation. The aim of this study is to clarify the tunnel junction surface works as a promoter of the surface reaction of the adsorbed molecules. We investigate the hot-electron-induced surface reaction of p-and o-nitrobenzoic acid (PNBA, ONBA)on the Ag(Au)top electrode of the Ag(Au)/AlOx/Al tunnel junction by using surface enhanced Raman scattering (SERS). The results show that the hot-electron generated under positive-bias voltage can induce reductive coupling reaction of the adsorbed molecules to generate azodibenzoate at the top electrode surface through surface plasmon polariton (SPP)resonance.
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