SERS and plasmonic heating efficiency from anisotropic core/satellite superstructures
Kuttner C, Hoeller RPM, Quintanilla M, Schnepf MJ, Dulle M, Fery A, Liz-Marzan LM (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 11
Pages Range: 17655-17663
Journal Issue: 38
DOI: 10.1039/c9nr06102a
Abstract
The optical properties of nanoparticle assemblies can be tailored via hybridization of plasmon modes. Isotropic core/satellite superstructures made of spherical nanoparticles are known to exhibit coupled modes with a strongly scattering (radiative) character, and provide hot spots yielding high activity in surface-enhanced Raman scattering (SERS). However, to complement this functionality with plasmonic heating, additional absorbing (non-radiative) modes are required. We introduce herein anisotropic superstructures formed by decorating a central nanorod with spherical satellite nanoparticles, which feature two coupled modes that allow application for both SERS and heating. On the basis of diffuse reflectance spectroscopy, small-angle X-ray scattering (SAXS), and electromagnetic simulations, the origin of the coupled modes is disclosed and thus serves as a basis toward alternative designs of functional superstructures. This work represents a proof-of-principle for the combination of high SERS efficiency with efficient plasmonic heating by near-infrared irradiation.
Involved external institutions
CIC biomaGUNE (Centro de Investigación Cooperativa en Biomateriales)
Spain (ES)
Leibniz-Institut für Polymerforschung Dresden e. V.
Germany (DE)
Forschungszentrum Jülich / Research Centre Jülich (FZJ)
Germany (DE)
Technische Universität Dresden
Germany (DE)
Spain (ES)
Leibniz-Institut für Polymerforschung Dresden e. V.
Germany (DE)
Forschungszentrum Jülich / Research Centre Jülich (FZJ)
Germany (DE)
Technische Universität Dresden
Germany (DE)
How to cite
APA:
Kuttner, C., Hoeller, R.P.M., Quintanilla, M., Schnepf, M.J., Dulle, M., Fery, A., & Liz-Marzan, L.M. (2019). SERS and plasmonic heating efficiency from anisotropic core/satellite superstructures. Nanoscale, 11(38), 17655-17663. https://doi.org/10.1039/c9nr06102a
MLA:
Kuttner, Christian, et al. "SERS and plasmonic heating efficiency from anisotropic core/satellite superstructures." Nanoscale 11.38 (2019): 17655-17663.
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