Malinowski, R;
Volpe, G;
Parkin, IP;
Volpe, G;
(2018)
Dynamic Control of Particle Deposition in Evaporating Droplets by an External Point Source of Vapor.
Journal of Physical Chemistry Letters
, 9
(3)
pp. 659-664.
10.1021/acs.jpclett.7b02831.
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Abstract
The deposition of particles on a surface by an evaporating sessile droplet is important for phenomena as diverse as printing, thin-film deposition, and self-assembly. The shape of the final deposit depends on the flows within the droplet during evaporation. These flows are typically determined at the onset of the process by the intrinsic physical, chemical, and geometrical properties of the droplet and its environment. Here, we demonstrate deterministic emergence and real-time control of Marangoni flows within the evaporating droplet by an external point source of vapor. By varying the source location, we can modulate these flows in space and time to pattern colloids on surfaces in a controllable manner.
| Type: | Article |
|---|---|
| Title: | Dynamic Control of Particle Deposition in Evaporating Droplets by an External Point Source of Vapor |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.jpclett.7b02831 |
| Publisher version: | http://doi.org/10.1021/acs.jpclett.7b02831 |
| Language: | English |
| Additional information: | Copyright © 2018 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
| 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 > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10042416 |
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