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Journal articles
Optical determination and identification of organic shells around nanoparticles: application to silver nanoparticles
Abstract : We present a simple method to prove the presence of an organic shell around silver nanoparticles (NPs). This method is based on the comparison between optical extinction measurements of isolated NPs and Mie calculations predicting the expected wavelength of the Localized Surface Plasmon Resonance of the NPs with and without the presence of an organic layer. This method was applied to silver NPs which seemed to be well protected from oxidation. Further experimental characterization via surface enhanced raman spectroscopy (SERS) measurements allowed to identify this protective shell as ethylene glycol. Combining LSPR and SERS measurements could thus give proof of both presence and identification for other plasmonic NPs surrounded by organic shells.
https://hal-utt.archives-ouvertes.fr/hal-02370045
Contributor : Jean-Baptiste Vu Van Connect in order to contact the contributor
Submitted on : Tuesday, November 19, 2019 - 11:53:01 AM
Last modification on : Wednesday, September 15, 2021 - 3:03:37 PM
Contributor : Jean-Baptiste Vu Van Connect in order to contact the contributor
Submitted on : Tuesday, November 19, 2019 - 11:53:01 AM
Last modification on : Wednesday, September 15, 2021 - 3:03:37 PM
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