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Martin Magnusson

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Airborne Gold Nanoparticle Detection Using Photoluminescence Excited with a Continuous Wave Laser

Author

  • Per Samuelsson
  • Markus Snellman
  • Martin H. Magnusson
  • Knut Deppert
  • Marcus Aldén
  • Zhongshan Li

Summary, in English

We report the observation of photoluminescence emission from airborne gold, silver, and copper nanoparticles. A continuous wave 532 nm laser was employed for excitation. Photoluminescence from gold nanoparticles carried in a nitrogen gas flow was both spectrally resolved and directly imaged in situ using an intensified charge-coupled device camera. The simultaneously detected Raman signal from the nitrogen molecules enables quantitative estimation of the photoluminescence quantum yield of the gold nanoparticles. Photoluminescence from metal nanoparticles carried in a gas flow provides a potential tool for operando imaging of plasmonic metal nanoparticles in aerosol reactions.

Department/s

  • Combustion Physics
  • Solid State Physics
  • NanoLund: Centre for Nanoscience

Publishing year

2021

Language

English

Pages

1402-1409

Publication/Series

Applied Spectroscopy

Volume

75

Issue

11

Document type

Journal article

Publisher

Society for Applied Spectroscopy

Topic

  • Atom and Molecular Physics and Optics
  • Nano Technology

Keywords

  • aerosols
  • Gold nanoparticles
  • in situ imaging
  • laser excitation
  • photoluminescence

Status

Published

ISBN/ISSN/Other

  • ISSN: 0003-7028