2013 Fiscal Year Final Research Report
Development of high functional plasmonic nanostructures consisting of low-cost metal species
| Project/Area Number |
24750135
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional materials chemistry
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| Research Institution | Nihon University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 表面プラズモン共鳴 / 金属ナノ構造 / 蛍光増強 / アルミニウム / 銅 |
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| Research Abstract |
We investigated the properties of enhanced local electric fields generated on the nanostructures consisting of Cu cheaper than conventional plasmonic species (Au and Ag). We demonstrated that the an ordered array of Cu nanostructures can produce a significant extinction peak due to the excitation of surface plasmon resonance (SPR) by changing the wavelength at which it is generated to longer wavelengths away from the interband transition region. Also, we have shown that the local electric fields due to the SPR generation drastically enhanced the fluorescence signals from a porphyrin derivative and indocyanine green within visible and near infrared region above the internal transition. From these results, we confirmed that the cheaper plasmonic nanostructures have high optical antenna effects.
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