Plasmonic carbon nanohybrids from laser-induced deposition: controlled synthesis and SERS properties

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Details zur Publikation

Autor(en): Povolotckaia A, Pankin D, Petrov Y, Vasileva A, Kolesnikov I, Sarau G, Christiansen S, Leuchs G, Manshina A
Zeitschrift: Journal of Materials Science
Jahr der Veröffentlichung: 2019
Band: 54
Heftnummer: 11
Seitenbereich: 8177-8186
ISSN: 0022-2461


A novel single-step, laser-induced and solution-based process is presented for synthesizing complex hybrid metal/carbon nanostructures. The process relies on simply illuminating the interface between a substrate and a liquid solution of the supramolecular complex [Au13Ag12(C2Ph)(20)(PPh2(C6H4)(3)PPh2)(3)][PF6](5) (hereinafter abbreviated as SMC) with an unfocussed He-Cd laser having a wavelength of 325nm and an intensity of I=0.5W/cm(2). The process results in hybrid nanostructures of well-controlled morphology: nanoparticles (NP) and 2D flakes, which may also grow jointly to form 3D morphologically complex multipetal flower-like' structures. At the atomic scale, the obtained metamaterials are complex in composition and structure, i.e., they contain bimetallic Au-Ag nanoclusters of diameter 3-5nm incorporated inside a carbonaceous matrix. This matrix can be amorphous or crystalline, and the details of the compositional outcome can be controlled and steered by the laser deposition parameters. Au-Ag nanoclusters show plasmonic behavior including the enhancement of electromagnetic fields of visible light. This leads to the enhancement of Raman scattering by the Au-Ag nanoparticle ensemble within the carbonaceous matrix. This enables a 3D architecture for stimulating surface-enhanced Raman scattering (SERS).

FAU-Autoren / FAU-Herausgeber

Leuchs, Gerd Prof. Dr.
Lehrstuhl für Experimentalphysik (Optik)

Autor(en) der externen Einrichtung(en)
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Saint Petersburg State University


Povolotckaia, A., Pankin, D., Petrov, Y., Vasileva, A., Kolesnikov, I., Sarau, G.,... Manshina, A. (2019). Plasmonic carbon nanohybrids from laser-induced deposition: controlled synthesis and SERS properties. Journal of Materials Science, 54(11), 8177-8186.

Povolotckaia, Anastasia, et al. "Plasmonic carbon nanohybrids from laser-induced deposition: controlled synthesis and SERS properties." Journal of Materials Science 54.11 (2019): 8177-8186.


Zuletzt aktualisiert 2019-04-04 um 13:23