Visible surface diffusion of gold nanostructures on a paper at room temperature through localized surface plasmon resonance

Nobuko Fukuda, Sakae Manaka

Research output: Contribution to journalArticlepeer-review

Abstract

We visually observed color changes of discontinuous gold surfaces on paper substrates through localized surface plasmon resonance (LSPR) at room temperature due to surface diffusion of gold nanostructures. Isolated nanoparticles and an uncompleted nanosheet of gold were obtained by thermal vapor deposition. After preservation for 8 months in air at room temperature, the particle sizes and shapes remarkably changed with color changes. The surface diffusion of the discontinuous gold on the paper would be derived from solid-state dieting, resulting in the growth of the nanosheet defect and coalescence of the nanoparticles. This is due to the total energy minimization of the surfaces of gold nanostructures and the paper and the interface between gold and the paper.

Original languageEnglish
Pages (from-to)325-330
Number of pages6
JournalMRS Advances
Volume4
Issue number5-6
DOIs
Publication statusPublished - 2019
Externally publishedYes

Keywords

  • Au
  • diffusion
  • nanostructure
  • plasmonic

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • General Materials Science
  • Condensed Matter Physics

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