 |
|
|
|
| |
|
 |
|
 |
|
|
|
|
|
|
|
|
|  |
| |
|
Liquid crystal bilayers (3.3nm) |
| Liquid crystal bilayers (3.3nm) |
| AFM scan on Liquid Crystal precursor film |
| Amphiphilic molecules self-organisation (5.5nm) |
| |
|
|
 |
|
|
| |
|
| |
|
| |
|
|
| |
Patterns and Pathways in Colloidal Nanoparticle Assemblies |
| |
| Collaboration: E. Vaujour & P. Moriarty (School of Physics and Astronomy, University of Nottingham, UK) |
|
|
| |
 |
|
| |
 |
| |  | | Observation of nanoparticles assemblie in real time | | | | | Determination of patterns and pathways morphology | | | | |
|
 |
|
|
|
|
| |
|
|
|
| |
 |
| |  | | SiO2 Surf
| | |  | | Your Optical Microscope : upright, reflected light (BF challenging, DIC mode for guaranteed success)
| | | | |
|
|
|
|
|
| |
|
|
| |
 |
A drop of 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 toluene is deposited in the centre of a Teflon ring [Pauliac-Vaujour et al., J. Phys. Chem. C (2007)] on the Surf (no pretreatment of the surface by O3). The solvent is evaporated at RT. Capture of a movie showing the particle deposition at the surface while the solvent front is retreating (on the bottom left corner). The thickness of the deposited layer is around 3nm which corresponds to the height of single particles. Inside this layer, particles self assemble according to the patterns previously described.
(Scale bar : 100 µm) |
|
|
|
|
| |
|
|
| |
|
|
|
|
|
| |
|
|
|
|
