Current Progresses of Electron Energy-Loss Spectroscopy in National Taiwan University: Applications in Plasmonics and Surface Resonances in Nanomaterials

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  • Chu Ming-Wen
    Scanning Transmission Electron Microscopy Laboratory, Center for Condensed Matter Sciences, National Taiwan University
  • Chen Cheng Hsusan
    Scanning Transmission Electron Microscopy Laboratory, Center for Condensed Matter Sciences, National Taiwan University

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Other Title
  • 国立台湾大学における電子エネルギー損失分光の最近の進展：ナノ材料におけるプラズモニクスと表面共鳴現象への応用
  • コクリツ タイワン ダイガク ニ オケル デンシ エネルギー ソンシツ ブンコウ ノ サイキン ノ シンテン ナノ ザイリョウ ニ オケル プラズモニクス ト ヒョウメン キョウメイ ゲンショウ エ ノ オウヨウ

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Abstract

<p>The scanning transmission electron microscopy (STEM) laboratory in National Taiwan University represents the first dedicated electron energy-loss spectroscopy (EELS) group in Taiwan. Our major expenditure in the past five years has been the development of the conjunction of STEM and EELS, STEM-EELS, enabling an electronic characterization at nanometer-scale spatial resolution. Using this combined technique of STEM-EELS, we have unraveled the intriguing surface-plasmon properties in individual gold nanoparticles, popularly known as plasmonics, and revived a class of surface resonances, surface exciton polaritons that had been largely ignored in the past. As what we will discuss through this article, STEM-EELS is not only an indispensable tool for nano-characterizations, but also an avenue for unexpected physics.</p>

Journal

  • KENBIKYO

    KENBIKYO 45 (1), 3-8, 2010-03-30

    The Japanese Society of Microscopy

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