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Liquid crystal bilayers (3.3nm) |
| Liquid crystal bilayers (3.3nm) |
| AFM scan on Liquid Crystal precursor film |
| Amphiphilic molecules self-organisation (5.5nm) |
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Patterns and Pathways in Colloidal Nanoparticle Assemblies |
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| Collaboration: E. Vaujour & P. Moriarty (School of Physics and Astronomy, University of Nottingham, UK) |
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| |  | | Observation of nanoparticles assemblie in real time | | | | | Determination of patterns and pathways morphology | | | | |
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| |  | | SiO2 Surf
| | |  | | Your Optical Microscope : upright, reflected light (BF challenging, DIC mode for guaranteed success)
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A colloïdal solution of Gold nanoparticles (diameter 2nm), passivated by thiol molecules C8H17S (total diameter around 3nm) [Brust et al., J. Chem. Soc., Chem. Commun. (1994)] in dichloromethane is spincoated on the Surf (pretreatment of the surface by O3). Typical arrangement of nanoparticles in cellular networks [Moriarty et al., Phys. Rev. Lett. 89, 248303 (2002)] in the bottom right corner of the image. Discontinuous patterns resulting from spinodal dewetting [Ge & Brus, J. Phys. Chem. B 104, 9573 (2000)] in the top left corner. These 2 areas are separated by a denser and thicker nanoparticle ring (more than a monolayer) in centre of the image.
(Scale bar : 20µm) |
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