Engineering Thermoswitchable Lithographic Hybrid Gold Nanorods as Plasmonic Devices for Sensing and Active Plasmonics Applications
| Autor: | Mai Nguyen, Andreas Hohenau, Leïla Boubekeur-Lecaque, Georges Lévi, Claire Mangeney, Emmanuelle Lacaze, Joachim R. Krenn, Azzdine Lamouri, Pamina M. Winkler, Nordin Félidj, Xiaonan Sun, Céline Bourdillon, Johan Grand |
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| Přispěvatelé: | Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS (UMR_7086)), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Institut des Nanosciences de Paris (INSP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Institut für Physik, Université Paris Diderot - Paris 7 (UPD7)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2015 |
| Předmět: |
[PHYS]Physics [physics]
chemistry.chemical_classification Materials science Context (language use) Nanotechnology Polymer Discrete dipole approximation Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry Hybrid system [CHIM]Chemical Sciences Nanorod Electrical and Electronic Engineering Refractive index Lithography ComputingMilieux_MISCELLANEOUS Plasmon Biotechnology |
| Zdroj: | ACS photonics ACS photonics, American Chemical Society, 2015, 2 (8), pp.1199-1208. ⟨10.1021/acsphotonics.5b00280⟩ ACS photonics, 2015, 2 (8), pp.1199-1208. ⟨10.1021/acsphotonics.5b00280⟩ |
| ISSN: | 2330-4022 |
| DOI: | 10.1021/acsphotonics.5b00280 |
| Popis: | In this article, we aim to investigate the sensitivity of regular arrays of hybrid plasmonic nanostructures to variations in properties of the local environment (temperature, refractive index, polymer thickness), in the context of sensing and active plasmonic applications. A proper description and characterization of such hybrid systems is indeed essential in order to provide designed criteria for efficient stimuli-responsive devices. As an ideal model, we introduce a novel kind of hybrid plasmonic core–shell system made of lithographic gold nanorods (GNRs), coated by a thermosensitive polymer shell based on poly(N-isopropylacrylamide) (pNIPAM). The grafting of the polymer on the GNRs results from a multistep but simple approach in order to confine the pNIPAM brushes on the GNRs and to control the thickness of the polymer coating. We show that the optical response of the plasmonic hybrid structures (GNR@pNIPAM) is strongly modified upon a variation of the external temperature, due to a physical change of ... |
| Databáze: | OpenAIRE |
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