Surface plasmon resonance properties of single elongated nano-objects : gold nanobipyramids and nanorods

The spectral characteristics (wavelength and line width) and the optical extinction cross-section of the longitudinal localized surface plasmon resonance (LSPR) of individual gold nanobipyramids have been quantitatively measured using the spatial modulation spectroscopy technique. The morphology of...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1999. - 28(2012), 24 vom: 19. Juni, Seite 9027-33
1. Verfasser: Lombardi, Anna (VerfasserIn)
Weitere Verfasser: Loumaigne, Matthieu, Crut, Aurélien, Maioli, Paolo, Del Fatti, Natalia, Vallée, Fabrice, Spuch-Calvar, Miguel, Burgin, Julien, Majimel, Jérome, Tréguer-Delapierre, Mona
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Gold 7440-57-5
Beschreibung
Zusammenfassung:The spectral characteristics (wavelength and line width) and the optical extinction cross-section of the longitudinal localized surface plasmon resonance (LSPR) of individual gold nanobipyramids have been quantitatively measured using the spatial modulation spectroscopy technique. The morphology of the same individual nanoparticles has been determined by transmission electron microscopy (TEM). The experimental results are thus interpreted with a numerical model using the TEM measured sizes of the particles as an input, and either including the substrate or assuming a mean homogeneous environment. Results are compared to those obtained for individual nanorods and also show the importance of the local environment of the particle on the detailed description of its spectral position and extinction amplitude
Beschreibung:Date Completed 23.10.2012
Date Revised 19.06.2012
published: Print-Electronic
Citation Status MEDLINE
ISSN:1520-5827
DOI:10.1021/la300210h