| Project/Area Number |
22655004
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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 chemistry
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
ONDA Ken 東京工業大学, 大学院・総合理工学研究科, 特任准教授 (60272712)
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| Project Period (FY) |
2010 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥3,460,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | 表面・界面 / 酸化物 / 表面分光 / 非線形分光 / 表面界面 / 振動和周波発生法 / 光触媒 |
|---|
| Research Abstract |
Aiming at developing high sensitivity spectroscopy of molecules adsorbed on oxide surfaces, vibrational sum frequency generation(VSFG) spectra on various oxide surfaces were measured. We discovered extraordinary strong signal located at 1600cm-1, which is three orders of magnitude stronger than ordinal signals, on a TiO2single crystal surface in air. In order to reveal the origin of this strong signal, we measured VSFG spectra of various molecules on various modified surfaces. The results implied that the enhancement effect is attributed to the resonance effect to the mixing state between surface water and defect states of the oxide surface.
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