High-Pressure Effect on the Optical Extinction of a Single Gold Nanoparticle
| Autor: | Sylvain Hermelin, Mike Hettich, Silvio D. Silva Santos, Fabrice Vallée, Fabio Medeghini, Alfonso San Miguel, Franck Legrand, Abraao Torres Dias, Etienne Pertreux, Romain Rouxel, Aurélien Crut, Natalia Del Fatti, Paolo Maioli |
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| Přispěvatelé: | Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Microscope Physical and chemical processes General Physics and Astronomy Nanoparticle Physics::Optics Metal nanoparticles 02 engineering and technology 010402 general chemistry 01 natural sciences Diamond anvil cell law.invention [SPI]Engineering Sciences [physics] law Surface plasmon resonance [CHIM]Chemical Sciences General Materials Science Absorption (electromagnetic radiation) Spectroscopy Nanoscopic scale Plasmon [PHYS]Physics [physics] business.industry spatial modulation spectroscopy General Engineering single nanoparticle extinction 021001 nanoscience & nanotechnology Carbon 0104 chemical sciences high pressure diamond anvil cell Optoelectronics Nanoparticles gold bipyramids 0210 nano-technology business |
| Zdroj: | ACS Nano ACS Nano, American Chemical Society, 2018, 12 (10), pp.10310-10316. ⟨10.1021/acsnano.8b05539⟩ |
| ISSN: | 1936-0851 |
| DOI: | 10.1021/acsnano.8b05539⟩ |
| Popis: | International audience; When reducing the size of a material from bulk down to nanoscale, the enhanced surface-to-volume ratio and the presence of interfaces make the properties of nano-objects very sensitive not only to confinement effects but also to their local environment. In the optical domain, the latter dependence can be exploited to tune the plasmonic response of metal nanoparticles by controlling their surroundings, notably applying high pressures. To date, only a few optical absorption experiments have demonstrated this feasibility, on ensembles of metal nanoparticles in a diamond anvil cell. Here, we report a nontrivial combination between a spatial modulation spectroscopy microscope and an ultraflat diamond anvil cell, allowing us to quantitatively investigate the high-pressure optical extinction spectrum of an individual nano-object. A large tuning of the surface plasmon resonance of a gold nanobipyramid is experimentally demonstrated up to 10 GPa, in quantitative agreement with finite-element simulations and an analytical model disentangling the impact of metal and local environment dielectric modifications. High-pressure optical characterizations of single nanoparticles allow for the accurate investigation and modeling of size, strain, and environment effects on physical properties of nano-objects and also enable fine-tuned applications in nanocomposites, nanoelectromechanical systems, or nanosensing devices. |
| Databáze: | OpenAIRE |
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