Fabrication of Inert Silver Nanoparticles with a Thin Silica Coating
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概要
- 論文の詳細を見る
We present a genuine experimental technique to fabricate silver nanoparticles with an ultrathin silica coating, thus making the nanoparticles chemically inert. The impact of the coating on plasmonic properties is experimentally quantified and compared with theoretical predictions. Furthermore, numerical simulations of the near-field enhancing properties of the nanoparticles are conducted. It is found that the coatings fabricated are sufficiently thin to make the plasmonic resonance wavelength shift negligible and for observing a significant field enhancement on the surface of the silica shell at the resonance wavelength. Application of such inert nanoparticles to sensitize the absorption of near-ultraviolet light is discussed.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-11-25
著者
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Tominaga Junji
Center For Applied Near-field Optics Research (can-for) Aist
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Awazu Koichi
Center For Applied Near-field Optics Research (can-for) National Institute Of Advanced Industrial Sc
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Ohki Yoshimichi
Department Of Electrical Electronic And Computer Engineering Waseda University
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Fujii Shinji
Department Of Biological Function Faculty Of Agriculture Okayama University
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Nomura Ken-ichi
Department of Electrical Engineering and Bioscience, Waseda University, Shinjuku, Tokyo 169-8555, Japan
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Fujimaki Makoto
Center for Applied Near-Field Optics Research, AIST, Tsukuba, Ibaraki 305-8562, Japan
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Fukuda Nobuko
Photonics Research Institute, AIST, Tsukuba, Ibaraki 305-8568, Japan
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Hirakawa Tsutomu
Research Institute for Environmental Management Technology, AIST, Tsukuba, Ibaraki 305-8569, Japan
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Rockstuhl Carsten
Institute of Condensed Matter Theory and Solid State Optics, Friedrich Schiller University Jena, Max-Wien Platz 1, 07743 Jena, Germany
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Tominaga Junji
Center for Applied Near-Field Optics Research, AIST, Tsukuba, Ibaraki 305-8562, Japan
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Tominaga Junji
Center for Applied Near Field Optics Research (CAN-FOR), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan
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Awazu Koichi
Center for Applied Near Field Optics Research (CAN-FOR), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan
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Fujimaki Makoto
Center for Applied Near-Field Optics Research (CAN-FOR), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan
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Nomura Ken-ichi
Department of Electrical Engineering and Bioscience, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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