Template-assisted colloidal self-assembly of macroscopic magnetic metasurfaces
Mayer M, Tebbe M, Kuttner C, Schnepf MJ, Koenig TAF, Fery A (2016)
Publication Type: Journal article
Publication year: 2016
Journal
Book Volume: 191
Pages Range: 159-176
DOI: 10.1039/c6fd00013d
Abstract
We demonstrate a template-assisted colloidal self-assembly approach for magnetic metasurfaces on macroscopic areas. The choice of anisotropic colloidal particle geometry, assembly pattern and metallic film is based on rational design criteria, taking advantage of mirror-charge effects for gold nanorods placed on gold film. Monodisperse gold nanorods prepared utilizing wet-chemistry are arranged with high precision on wrinkled templates to form linear array-type assemblies and subsequently transferred to a thin gold film. Due to the obtained particle-to-film distance of 1.1 nm, the plasmonic mode of the nanorod is able to couple efficiently with the supporting metallic film, giving rise to a magnetic mode in the visible spectrum (721 nm). Conventional UV-vis-NIR measurements in close correlation with electromagnetic simulations provide evidence for the presence of a magnetic resonance on the macroscopic area. The herein presented scalable lithography-free fabrication process paves the road towards colloidal functional metasurfaces with an optical response in the effective magnetic permeability.
Involved external institutions
Germany (DE)How to cite
APA:
Mayer, M., Tebbe, M., Kuttner, C., Schnepf, M.J., Koenig, T.A.F., & Fery, A. (2016). Template-assisted colloidal self-assembly of macroscopic magnetic metasurfaces. Faraday Discussions, 191, 159-176. https://doi.org/10.1039/c6fd00013d
MLA:
Mayer, Martin, et al. "Template-assisted colloidal self-assembly of macroscopic magnetic metasurfaces." Faraday Discussions 191 (2016): 159-176.
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