Projets par an
Résumé
Polymer/graphene heterostructures present good shielding efficiency against GHz electromagnetic perturbations. Theory and experiments demonstrate that there is an optimum number of graphene planes, separated by thin polymer spacers, leading to maximum absorption for millimeter waves Batrakov et al (2014 Sci. Rep. 4 7191). Here, electrodynamics of ideal polymer/graphene multilayered material is first approached with a well-adapted continued-fraction formalism. In a second stage, rigorous coupled wave analysis is used to account for the presence of defects in graphene that are typical of samples produced by chemical vapor deposition, namely microscopic holes, microscopic dots (embryos of a second layer) and grain boundaries. It is shown that the optimum absorbance of graphene/polymer multilayers does not weaken to the first order in defect concentration. This finding testifies to the robustness of the shielding efficiency of the proposed absorption device.
langue originale | Anglais |
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Numéro d'article | 285702 |
Nombre de pages | 9 |
journal | Nanotechnology |
Volume | 26 |
Numéro de publication | 28 |
Les DOIs | |
Etat de la publication | Publié - 17 juil. 2015 |
Projets
- 3 Terminé
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GRAPHENE: Graphene-driven revolutions in ICT and beyond, FP7 Flagship project Nr 604391
Henrard, L., Lambin, P., Colomer, J., Reckinger, N., Felten, A., Mayer, A., Sporken, R. & Pireaux, J.
1/10/14 → 31/03/16
Projet: Recherche
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FAEMCAR: Fundamental and Applied Electromagnetics of Nano-Carbons
1/11/12 → 31/10/16
Projet: Recherche
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Équipement
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Microscopie électronique
Jean-Francois Colomer (!!Manager) & Corry Charlier (!!Operator)
Plateforme technologique Morphologie, imagerieEquipement/installations: Equipement
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Plateforme Technologique Calcul Intensif
Benoît Champagne (!!Manager)
Plateforme technologique Calcul intensifEquipement/installations: Plateforme technolgique
Activités
- 1 Jury
Thèses de l'étudiant
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Super absorbers: a metamaterial approach
Auteur: Lobet, M., 25 nov. 2016Superviseur: Henrard, L. (Promoteur), Deparis, O. (Copromoteur), Sporken, R. (Président), Lambin, P. (Jury), Hackens, B. (Personne externe) (Jury) & Tassin, P. (Personne externe) (Jury)
Student thesis: Doc types › Docteur en Sciences