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Design de particules plasmoniques pour le contrôle de l'absorption et de l'émission de lumière

Ferrié Mélanie 1 
CRPP - Centre de recherches Paul Pascal
Abstract : During this work, we were interested in the design of plasmonic particles for the control of the absorption and the emission of light. Our strategy was to synthesize core@shell nanoparticles made of a gold core and a silica shell containing fluorescent organic molecules. We have varied the distance between the emitters and the core in order to tune their coupling with the plasmons of gold. We thus tuned the optical properties of the particles. We were also interested in the assembly of these nanoparticles to get supra-particles or organized two-dimensional networks. The study of optical properties of these new materials showed that the exaltation of the fluorescence is maximal when the core@shell particles are confined between two gold boundaries, this situation corresponding to a strong cavity mode. We also worked on the synthesis of particles consisting of a silica core and either a gold shell with bare patches or a titanium dioxide shell with patches covered with gold nanoparticles.
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Submitted on : Tuesday, March 6, 2012 - 9:44:49 AM
Last modification on : Tuesday, December 7, 2021 - 11:46:11 AM
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  • HAL Id : tel-00676707, version 1



Ferrié Mélanie. Design de particules plasmoniques pour le contrôle de l'absorption et de l'émission de lumière. Matière Molle [cond-mat.soft]. Université Sciences et Technologies - Bordeaux I, 2011. Français. ⟨NNT : ⟩. ⟨tel-00676707⟩



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