Plasmonic activity on gold nanoparticles embedded in nanopores formed in a surface layer of silica glass by swift-heavy-ion irradiation

Ken Ichi Nomura, Yoshimichi Ohki, Makoto Fujimaki, Xiaomin Wang, Koichi Awazu, Tetsuro Komatsubara

研究成果: Article

3 引用 (Scopus)

抜粋

Silica glass was irradiated by swift heavy ions by selecting the ion species and its energy in order to induce the largest damaged regions. These regions were then selectively etched by hydrofluoric acid vapour to form nanopores on the glass surface. Subsequently, gold nanoparticles were embedded into the nanopores by vacuum evaporation, followed by thermal treatment. In the new plasmonic structure obtained with these procedures, the localized surface plasmon excitation wavelength induced around the gold nanoparticles was found to show a redshift, which agreed well with the theoretical calculation, when water was introduced into the nanopores. This indicates that the fabricated structure can be used as a sensing element to detect the adhesion of substances such as biomolecules to the nanoparticles by measuring the redshift.

元の言語English
記事番号475306
ジャーナルNanotechnology
20
発行部数47
DOI
出版物ステータスPublished - 2009 11 25

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

フィンガープリント Plasmonic activity on gold nanoparticles embedded in nanopores formed in a surface layer of silica glass by swift-heavy-ion irradiation' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用