2017 Fiscal Year Final Research Report
Development of selective ultrasensitive plasmon sensor using far-ultraviolet light
| Project/Area Number |
16K14025
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | Kwansei Gakuin University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TANABE Ichiro 大阪大学, 基礎工学研究科, 助教 (80709288)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | 遠紫外 / センサー / プラズモン / ATR / アルミニウム薄膜 |
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| Outline of Final Research Achievements |
We proposed new surface plasmon resonance (SPR) sensors using aluminum (Al) thin films that work in the far- and deep-ultraviolet (FUV-DUV) regions and investigated SPR properties by an ATR based spectrometer. In this study, it was revealed that the Al thin film on a quartz prism cannot be used as the FUV-DUV-SPR sensor in water solutions. This is because its SPR wavelength shifts to the visible region owing to the presence of water. On the other hand, the SPR wavelength of the Al thin film on the sapphire prism remained in the DUV
region even in water.These results mean that the Al thin film can be used as the sensor in solutions. Al film thickness dependence of SPR was revealed using an ATR spectrometer. In the FUV region, films of thicknesses 23 and 9 nm showed strong SPR excitations in air and 1,1,1,3,3,3-hexafluoro-2-propanol. Therefore, Al-SPR sensors are expected to work both in air and in liquids by controlling the film thickness.
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| Free Research Field |
物理化学、分析化学、分子分光学
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