期刊
MATERIALS LETTERS
卷 118, 期 -, 页码 99-102出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.12.057
关键词
Nanocomposite; Layer-by-Layer; Magnetic-plasmonic; Nanoparticle; Tunable optical property
资金
- Agency for Innovation by Science and Technology (IWT) Flanders
- Department of Chemistry of the KU Leuven
- EPSRC [EP/G060649/1]
- KU Leuven (GOA Research Grant)
- FWO-Vlaanderen [G.0C02.13N]
- Engineering and Physical Sciences Research Council [EP/G060649/1] Funding Source: researchfish
- EPSRC [EP/G060649/1] Funding Source: UKRI
Spurred by research in magnetoplasmonics, plasmon-enhanced magneto-optical effects and active plasmonics, the demand for hybrid magnetic-plasmonic nanoparticle-based materials of optical quality is high. Currently used synthesis methods involve possibly interfering polymer media or polyelectrolyte interlayers, grooved supports or non-transparent substrates. To obtain homogeneous, partially transparent and polymer/polyelectrolyte-free magnetic-plasmonic nanocomposites with angle-independent optical properties, we produced hybrid gold-magnetite and silver-magnetite nanocomposites by a novel Layer-by-Layer synthesis using short bifunctional molecular linkers on glass substrates. Resulting nanocomposites had high nanoparticle filling fractions and showed tunability of the plasmon wavelength over a very broad spectral range by changing composite thickness through the number of added nanoparticle layers. The angle-independence of optical properties and the abilities to switch the plasmonic material and to tune the plasmon resonances of the magnetic-plasmonic composites make these materials a unique platform for magnetoplasmonic research. (C) 2013 Elsevier B.V. All rights reserved.
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