Darkins, R;
Sushko, ML;
Liu, J;
Duffy, DM;
(2015)
The effect of surface topography on the micellisation of hexadecyltrimethylammonium chloride at the silicon-aqueous interface.
Journal of Physics: Condensed Matter
, 27
(5)
, Article 054008. 10.1088/0953-8984/27/5/054008.
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Abstract
Amphiphilic aggregation at solid-liquid interfaces can generate mesostructured micelles that can serve as soft templates. In this study we have simulated the self-assembly of hexadecyltrimethylammonium chloride (C16TAC) surfactants at the Si(1 0 0)- and Si(1 1 1)-aqueous interfaces. The surfactants are found to form semicylindrical micelles on Si(1 0 0) but hemispherical micelles on Si(1 1 1). This difference in micelle structure is shown to be a consequence of the starkly different surface topographies that result from the reconstruction of the two silicon surfaces, and reveals that micelle structure can be governed by epitaxial matching even with non-polar substrates.
| Type: | Article |
|---|---|
| Title: | The effect of surface topography on the micellisation of hexadecyltrimethylammonium chloride at the silicon-aqueous interface |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/0953-8984/27/5/054008 |
| Publisher version: | http://dx.doi.org/10.1088/0953-8984/27/5/0540 |
| Language: | English |
| Additional information: | © 2015 IOP Publishing Ltd |
| Keywords: | self-assembly, micelle, ctac, silicon, topography |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1468031 |
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