2010 Fiscal Year Final Research Report
Development of Photoelectrochemical Energy Conversion Systems Based on Nanostructured Interfaces
| Project Area | Strong Photons-Molecules Coupling Fields for Chemical Reactions |
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| Project/Area Number |
19049008
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TATSUMA Tetsu The University of Tokyo, 生産技術研究所, 教授 (90242247)
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| Co-Investigator(Renkei-kenkyūsha) |
SAKAI Nobuyuki 東京大学, 生産技術研究所, 助教 (70431822)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 金属ナノ粒子 / プラズモン共鳴 / 酸化チタン / 光電変換 / フォトクロミズム |
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| Research Abstract |
We have found that photoinduced charge separation is possible at the interfaces between Au or Ag nanoparticles (NPs) and TiO_2. The charge separation is based on the localized surface plasmon resonance (LSPR) of the NPs, and electron transfer from photoexcited metal NPs to TiO_2, which is induced or promoted by plasmonic near field, is responsible for the charge separation. We have also found that the present system can be applied to photovoltaic devices, photocatalysis, and photoelectrochemical actuators, as well as near infrared and polarization-selective photochromism and morphology and orientation control of NPs.
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