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Issue 47, 2011
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Broad band tuning of the plasmonic resonance of gold nanoparticles hosted in self-organized soft materials

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Abstract

The extraordinary properties of reconfigurable soft materials are used to drive the resonance properties of noble metal nanoparticles, using an approach that puts a bridge between soft matter and plasmonics. Gold nanoparticles have been dissolved in a cholesteric liquid crystal and then infiltrated in a micro-periodic polymeric structure, realized by combining a holographic step and a microfluidic etching process. The spectral behavior of the nano-composite soft-structure has been investigated in the UV-Vis range for two different polarization directions of the impinging probe light. Correlation between the optical response and external perturbations (electric field, temperature variation) gives an outstanding example of broadband tuning of an “active” plasmon resonance.

Graphical abstract: Broad band tuning of the plasmonic resonance of gold nanoparticles hosted in self-organized soft materials

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Publication details

The article was received on 23 Sep 2011, accepted on 20 Oct 2011 and first published on 03 Nov 2011


Article type: Communication
DOI: 10.1039/C1JM14753F
Citation: J. Mater. Chem., 2011,21, 18967-18970
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    Broad band tuning of the plasmonic resonance of gold nanoparticles hosted in self-organized soft materials

    L. De Sio, R. Caputo, U. Cataldi and C. Umeton, J. Mater. Chem., 2011, 21, 18967
    DOI: 10.1039/C1JM14753F

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