Size- and Shape-Dependent Fluorescence Quenching of Gold Nanoparticles on Perylene Dye

Abstract

Organo-soluble decane thiol monolayer-protected gold nanoparticles of different shapes and sizes are homogenously mixed with strong fl uorescent perylene diimide (PDI) dye molecules in both solution and solid states. The effect of the doped gold nanoparticles on PDI is investigated by UV vis, fl uorescence, transmission electron microscopy, scanning electron microscopy, and Raman experiments. The gold nanoparticles are found to modify the strong fl uorescence properties of PDI depending on particle size and shape. The smallest spherical gold nanoparticles (2.6 nm) exhibit the strongest quenching effect. When the smallest spherical gold nanoparticles are cast on the PDI soaked paper followed by drying and/or sealing in a polydimethylsiloxane fi lm, the area with gold nanoparticles shows signifi cant quenching effects under a UV light but appears visually identical to the surrounding area under daylight. This demonstrates the potential to introduce gold nanoparticles into practical applications such as antifraud technologies.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2013
Accession Number
ADA590548

Entities

People

  • Augustine Urbas
  • Chenming Xue
  • Liming Dai
  • Quan Li
  • Yuhua Xue

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Advanced Materials
  • Electron Microscopes
  • Electron Microscopy
  • Manufacturing
  • Materials
  • Metallic Nanoparticles
  • Microscopy
  • Monomolecular Films
  • Nanomaterials
  • Nanoparticles
  • Particles
  • Raman Spectra
  • Raman Spectroscopy
  • Scanning Electron Microscopy
  • Spectra
  • Surface Plasmon Resonance
  • Transmission Electron Microscopy

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Electrochemical Surface Science
  • Nanoscale Plasmonic Nanotechnology

Technology Areas

  • Biotechnology
  • Microelectronics