Martin Magnusson
deputy head of department
Airborne Gold Nanoparticle Detection Using Photoluminescence Excited with a Continuous Wave Laser
Author
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