Plasmonic and Magnetically Responsive Gold ShellMagnetic Nanorod Hybrids

Abstract

In this work we demonstrated a new methodology to create asymmetric magnetic nanorods with a plasmonically active gold outer shell. The multistage approach involves the synthesis of a precursor iron (III) oxide-hydroxide (FeOOH) nanorod, where the incorporation of a protective silica (SiO2) shell allows for the material/morphology to survive hydrothermal treatment and subsequent transition to magnetically responsive iron (II, III) oxide (Fe3O4). On the magnetic nanorod-SiO2 particle, a thin gold layer is grown to directly introduce tailorable plasmonic properties. This approach is demonstrated applicable to both spherical and asymmetric morphologies, allowing the hybrid materials to be readily engineered for precise magnetic and plasmonic responses.

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Document Details

Document Type
Technical Report
Publication Date
Oct 10, 2017
Accession Number
AD1040118

Entities

People

  • Andres A. Bujanda
  • Devon A. Boyne
  • Mackenzie G Williams
  • Mark H Griep
  • Ngon Tran

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Alcohols
  • Electron Microscopy
  • Engineered Materials
  • Hydroxides
  • Iron Oxides
  • Magnetic Cores
  • Magnetic Materials
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Testing
  • Metal Oxide Nanoparticles
  • Microscopy
  • Nanomaterials
  • Nanoparticles
  • Particles
  • Silicon Dioxide

Readers

  • Nanoscale Plasmonic Nanotechnology
  • Superconducting Magnet Technology