Manipulation of the fluorescence of nanocrystals by opal-based heterostructures
| Autor: | Maitre Agnes, Schwob Catherine, Bourdillon Celine, Daney de Marcillac Willy, Hong Phan Ngoc, Coolen Laurent |
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| Přispěvatelé: | Institut des Nanosciences de Paris (INSP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Institute of Materials Science, Vietnam Academy of Science and Technology (VAST), Labex Matisse, ANR-11-IDEX-0004,SUPER,Sorbonne Universités à Paris pour l'Enseignement et la Recherche(2011), ANR-11-IDEX-0004,SUPER(2011) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Photoluminescence business.industry Physics::Optics Heterojunction 02 engineering and technology General Chemistry Stopband 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Laser linewidth Wavelength Optics Materials Chemistry Optoelectronics [CHIM]Chemical Sciences Photonics 0210 nano-technology business Spectroscopy Photonic crystal |
| Zdroj: | Journal of Materials Chemistry C Journal of Materials Chemistry C, 2015, 3 (37), pp.9734-9739 ⟨10.1039/C5TC01829C⟩ Journal of Materials Chemistry C, Royal Society of Chemistry, 2015, 3 (37), pp.9734-9739 ⟨10.1039/C5TC01829C⟩ |
| ISSN: | 2050-7526 2050-7534 |
| Popis: | International audience; Opal-based photonic crystals are promising materials to engineer complex heterostructures for efficient manipulation of nano-emitters fluorescence. We fabricated and characterized a structure composed of a layer of silica embedded between two silica opals. Thanks to this controlled planar defect which opens a permitted frequency band in the photonic stopband, an increase of emission, depending on angular distribution, is evidenced through photoluminescence spectroscopy. We discuss the use of such a structure as a self-assembled micrometer-sized spectroscopic device and demonstrate that it can be used to point the maximum emission wavelength of an unknown light source up to a certain linewidth. It can as well separate two sources, emitting at different wavelengths, with a resolution given by the Rayleigh criterion. |
| Databáze: | OpenAIRE |
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