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 journalArticlepeer-review

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
DOIs
Publication statusPublished - 2008 Jan 1

All Science Journal Classification (ASJC) codes

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

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