Impact of negative line tension on the shape of nanometer-size sessile droplets.
Phys Rev Lett
; 105(7): 076103, 2010 Aug 13.
Article
em En
| MEDLINE
| ID: mdl-20868061
ABSTRACT
The sign and value of the line tension has been measured from the size dependence of the contact angle of nanometer-size sessile fullerene (C60) droplets on the planar SiO2 interface, measured with atomic force microscopy (AFM). Analysis according to the modified Young's equation indicates a negative line tension, with a magnitude between -10{-11} and -10{-10} N/m, in good agreement with theoretical predictions. The experiments also indicate that droplets with contact area radii below 10 nm are in fact two-dimensional round terraces.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2010
Tipo de documento:
Article