| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ravaine, Serge
University of Bordeaux
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Investigation of the photochromism of WO3, TiO2, and composite WO3-TiO2 nanoparticlescitations
- 2021Versatile template-directed synthesis of gold nanocages with a predefined number of windowscitations
- 2020Electrodeposited Negative Index Metamaterials with Visible and Near Infrared Responsecitations
- 2018Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengthscitations
- 2015Morphological Design of Gold Nanopillar Arrays and Their Optical Propertiescitations
- 2015Charge detection Mass spectrometry for the characterization of Mass and surface area of composite nanoparticlescitations
- 2015Molecularly imprinted hydrogels from colloidal crystals for the detection of progesteronecitations
- 2012Engineering of Complex Macroporous Materials Through Controlled Electrodeposition in Colloidal Superstructurescitations
- 2012Spheres Growing on a Sphere: A Model to Predict the Morphology Yields of Colloidal Molecules Obtained through a Heterogeneous Nucleation Routecitations
- 2011Photonic crystal pH sensor containing a planar defect for fast and enhanced responsecitations
- 2011Photonic crystal pH sensor containing a planar defect for fast and enhanced responsecitations
- 2011Introduction of a planar defect in a molecularly imprinted photonic crystal sensor for the detection of bisphenol Acitations
- 2011Inhibition and exaltation of emission in layer-controlled colloidal photonic architecturescitations
- 2011Design of Catalytically Active Cylindrical and Macroporous Gold Microelectrodescitations
- 2010CoFe2O4-TiO2 and CoFe2O4-ZnO Thin Film Nanostructures Elaborated from Colloidal Chemistry and Atomic Layer Depositioncitations
- 2010Fine tuning of emission through the engineering of colloidal crystalscitations
- 2009Effects of the Position of a Chemically or Size-Induced Planar Defect on the Optical Properties of Colloidal Crystalscitations
- 2009Building planar defects into colloidal crystals using particles of different chemical naturecitations
- 2007Designing organic/inorganic colloids by heterophase polymerizationcitations
- 2006Nucleation of Polystyrene Latex Particles in the Presence of γ-Methacryloxypropyltrimethoxysilane: Functionalized Silica Particlescitations
- 2006Colloidal Crystals as Templates for Macroporous Carbon Electrodes of Controlled Thicknesscitations
- 2004Synthesis of daisy-shaped and multipod-like silica/polystyrene nanocompositescitations
Places of action
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article
Effects of the Position of a Chemically or Size-Induced Planar Defect on the Optical Properties of Colloidal Crystals
Abstract
We have fabricated several heterostructures made of two opal slabs separated by a defect. The optical properties of the resulting materials have been characterized by recording their near-infrared (NIR) transmission spectra and by simulating them using the finite-difference time-domain method. The presence of the extrinsic defect led to an impurity mode within the photonic stop band, which was observed as a pass band in the NIR spectra. We show that the amplitude of the pass band is maximal when the two opals confining a defect monolayer made of smaller colloids have the same number of layers. On the other hand, this middle position of the defect layer does not correspond to an optimal cavity when the guest particles are larger than the host ones, as the presence of the defect induces a deterioration of the crystalline organization of the upper opal slab. To minimize the presence of unintentional defects in the heterostructures, we incorporated a planar defect made of particles of a different nature but of the same size than those forming the host opal. A pass band within the band gap was also observed in the NIR transmission spectra of the samples due to the difference between the refractive indexes of the guest and host colloids.