| Autor: |
Koster, LJA, Khodabakhsh, S, Greenham, NC |
| Přispěvatelé: |
Photophysics and OptoElectronics, Zernike Institute for Advanced Materials, Greenham, Neil [0000-0002-2155-2432], Apollo - University of Cambridge Repository |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Soft Matter, 10(34), 6485-6490. ROYAL SOC CHEMISTRY |
| ISSN: |
1744-683X |
| Popis: |
We report control over the phase behavior of CdS nanorods via the solvent and acidity. CdS nanorods were synthesized using alkane phosphonic acid ligands, which were replaced after synthesis by a series of aromatic ligands. Change of ligand enabled us to cast films from different solvents. By replacing toluene with ethanol or water the rod-rod interactions dominate over rod-substrate interactions, thereby favoring simple hexagonal ordering (2D). When dispersed in water, a net electrostatic charge on the nanorods could be induced by deprotonating the ligands at high pH. This net charge favors 2D nematic ordering over homeotropic ordering of the nanorods on a substrate. A calculation of the van der Waals and electrostatic interactions is presented that explains the observed influence of solvent and pH. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
