Gold nanoparticle capping layers: Structure, dynamics, and surface enhancement measured using 2D-IR spectroscopy

  • Donaldson P
  • Hamm P
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Abstract

Surface analysis: two-dimensional infrared spectroscopy (2D-IR) was used to probe amide and carboxylate functional groups in the vicinity of gold nanoparticles and their aggregates. The data presented shows that the unique ability of 2D-IR spectroscopy to characterize broadening mechanisms and cross peaks offers new insights into gold nanoparticle capping layer structure and dynamics.

Author-supplied keywords

  • IR spectroscopy
  • laser spectroscopy
  • nanoparticles
  • surface analysis
  • ultrafast dynamics

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Authors

  • Paul M. Donaldson

  • Peter Hamm

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