Rings and hexagons made of nanocrystals: A Marangoni effect

Authors
Maillard, M Motte, L Ngo, AT Pileni, MP
Citation
M. Maillard et al., Rings and hexagons made of nanocrystals: A Marangoni effect, J PHYS CH B, 104(50), 2000, pp. 11871-11877
Citations number
32
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
104
Issue
50
Year of publication
2000
Pages
11871 - 11877
Database
ISI
SICI code
1520-6106(200012)104:50<11871:RAHMON>2.0.ZU;2-E
Abstract
By controlling solvent evaporation rates, it has been possible to form micr ometer rings and hexagonal arrays made of nanocrystals of different sizes, shapes and materials. Such patterns are driven by surface tension gradients that induce Benard-Marangoni instabilities in the liquid films. The result ing self-assembled structures are consistent with theoretical prediction of hydrodynamic instabilities.