Surface-enhanced Raman spectroscopy with monolithic nanoporous gold disk substrates

Nanoscale. 2013 May 21;5(10):4105-9. doi: 10.1039/c2nr33242f.

Abstract

Monolithic hierarchical nanoporous gold disks, 500 nm in diameter, 75 nm in thickness and 3.5 nm in pore radius, have been fabricated by hybrid processes. A surface-enhanced Raman scattering enhancement factor of at least 10(8) has been obtained on individual disks using benzenethiol self-assembled monolayer with 785 nm laser excitation.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Gold / chemistry*
  • Metal Nanoparticles / chemistry*
  • Metal Nanoparticles / ultrastructure*
  • Particle Size
  • Phenols / chemistry*
  • Porosity
  • Spectrum Analysis, Raman*
  • Sulfhydryl Compounds / chemistry*

Substances

  • Phenols
  • Sulfhydryl Compounds
  • Gold
  • thiophenol