Metallodielectric composites are very interesting from the point of view of metamaterials and plasmonics. Bottom-up methods, like self-organization and other chemical methods are potential future manufacturing techniques which could be suitable for large scale fabrication [1, 2, 3, 4].

The main idea of the work is to utilize the self-organization mechanism of metallodielectric eutectic materials to create plasmonic nanocomposites trough directional solidification.

In this work Bi₂O₃-Ag eutectic directionally solidified by the micro-pulling down method has been studied. The composite exhibits three-dimensional silver multiscale structure embedded in the bismuth oxide matrix. After applied annealing procedure in the Bi₂O₃-Ag composite the metallic nanoparticles are formed and material exhibits a localized surface plasmon resonance (LSPR) at around 590nm, which has been confirmed by the UV-VIS transmission spectra. This is the first demonstration of plasmonic behaviour in a eutectic which has been engineered specifically for this purpose using the self-organization mechanism.

The study of an influence of annealing temperature of the composite on the resonance properties in comparison with the pure bismuth oxide phase, together with micro/nano-structural investigation (XRD, SEM, TEM) will be presented.  Additionally after doping the material with erbium ions, the enhancement of the luminescence at the telecommunication wavelength is observed.

References

[1]  D. A. Pawlak, S. Turczynski, M. Gajc, et al., How far are we from making metamaterials by self-organization? The microstructure of highly anisotropic particles with an SRR-like geometry. Adv. Funct. Mat. 20, 1116, (2010).

[2]  M. Gajc, B. H. Surma, A. Klos, K. Sadecka, K. Orlinski, A. E. Nikolaenko, K. Zdunek, D. A. Pawlak, Nanoparticle Direct Doping: novel method for manufacturing three-dimensional bulk plasmonic nanocomposites. Adv. Funct. Mat. 10.1002/adfm.201203116 (2013)

[3]   C. Rockstuhl, T. Scharf, A metamaterial based on coupled metallic nanoparticles and its band-gap property, J. Microsc, 229, 2, 281, (2008).

[4]   N.I. Zheludev, The Road Ahead for Metamaterials, Science, 328, 582, (2010). 

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