Synthesis of Core@Shell composites with gold nanoparticles trapped inside ceramic silica shells by the sol-gel method

Chien Jung Huang, Pin Hsiang Chiu, Yeong-Her Wang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper describes a sol-gel (SG) method for the coating of gold nanoparticles with uniform shells of amorphous silica. The thickness of silica could be conveniently controlled in the range of 10 to 120 nm by increasing the amount of water. Although spherical gold nanoparticles generally have a surface plasmon resonance (SPR) at a wavelength of about 520 nm, a spherical gold core with a silica shell offers a very highly tunable SPR wavelength depending on the thickness of the silica shell.

Original languageEnglish
Pages (from-to)797-799
Number of pages3
JournalKey Engineering Materials
Volume368-372 PART 1
Publication statusPublished - 2008 Mar 27

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Silicon Dioxide
Gold
Sol-gel process
Silica
Nanoparticles
Composite materials
Surface plasmon resonance
Wavelength
Coatings
Water

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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Synthesis of Core@Shell composites with gold nanoparticles trapped inside ceramic silica shells by the sol-gel method. / Huang, Chien Jung; Chiu, Pin Hsiang; Wang, Yeong-Her.

In: Key Engineering Materials, Vol. 368-372 PART 1, 27.03.2008, p. 797-799.

Research output: Contribution to journalArticle

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