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Cristaux photoniques colloïdaux d'architecture contrôlée

Abstract : This manuscript deals with the elaboration of photonic crystals with a controlled architecture from the self-assembly of colloidal particles. We presented in a first part the synthesis of mineral and organic monodisperse colloidal particles and the method of elaboration of colloidal photonic crystals with a homogenous thickness. Crystalline quality of the colloidal assemblies has been investigated by Scanning Electron Microscopy and their optical properties characterized by Near InfraRed spectroscopy. In order to modulate the architecture of the materials, we have elaborated heterostructures consisting in the superposition of two colloidal crystals of particles of different diameter, or we have inserted in a controlled manner planar defects made of monolayers of colloidal spheres of different diameter or different nature inside the crystals. The structure-optical properties relationship of these materials has been systematically investigated. Such a study is a clear example of the wide diversity of optical properties that can be obtained by precisely tailoring the architecture of colloidal photonic crystals.
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Submitted on : Thursday, March 20, 2008 - 2:40:52 PM
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  • HAL Id : tel-00265897, version 1



Pascal Massé. Cristaux photoniques colloïdaux d'architecture contrôlée. Matériaux. Université Sciences et Technologies - Bordeaux I, 2007. Français. ⟨tel-00265897⟩



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