Martin Magnusson
Ställföreträdande prefekt & studierektor för grundutbildning
Airborne Gold Nanoparticle Detection Using Photoluminescence Excited with a Continuous Wave Laser
Författare
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.
Avdelning/ar
- Förbränningsfysik
- Fasta tillståndets fysik
- NanoLund: Centre for Nanoscience
Publiceringsår
2021
Språk
Engelska
Sidor
1402-1409
Publikation/Tidskrift/Serie
Applied Spectroscopy
Volym
75
Issue
11
Dokumenttyp
Artikel i tidskrift
Förlag
Society for Applied Spectroscopy
Ämne
- Atom and Molecular Physics and Optics
- Nano Technology
Nyckelord
- aerosols
- Gold nanoparticles
- in situ imaging
- laser excitation
- photoluminescence
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0003-7028