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Facile room temperature deposition of gold nanoparticle-ionic liquid hybrid film on silica substrate

  • S. Krishnamurthy
  • , D. Harikishore Kumar Reddy*
  • , G. Sankar
  • , Yeoung Sang Yun
  • *Corresponding author for this work
  • Jeonbuk National University
  • University College London

Research output: Contribution to journalJournal articlepeer-review

Abstract

This work presents facile synthesis of gold nanoparticle (Au NP)-ionic liquid hybrid film of < 10 nm by a simple two-step process at room temperature by deposition of Au NPs suspended in 1-hexyl-1methyl-pyrolidinium bromide, on Si (111) substrates. FTIR results demonstrated that ionic liquid properties remain unaltered during and after Au NP synthesis, and even coating on Si (111) substrate. XRD, XPS, and XAS spectral data confirm the presence of Au(0) while EXAFS data indicated the presence of small particles or incomplete surface species. Cross-sectional analysis using FE-SEM and edge length measurement using AFM showed that the film thickness is ca 10 nm.

Original languageEnglish
Pages (from-to)48-55
Number of pages8
JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume170
DOIs
StatePublished - 2017.01.5

Keywords

  • Gold
  • Ionic-liquid
  • Nanoparticle
  • Room-temperature
  • Thin-film

Quacquarelli Symonds(QS) Subject Topics

  • Chemistry
  • Physics & Astronomy

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