Soles, C.
, Ro, H.
, , K.
, Shpyrko, O.
, Dai, Y.
, Sandy, A.
and Narayanan, S.
(2012),
Capillary Wave Dynamics of Thin Polymer films over Submerged Nanostructures, Physical Review Letters, [online], https://doi.org/10.1103/PhysRevLett.109.207801
(Accessed April 19, 2024)
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Capillary Wave Dynamics of Thin Polymer films over Submerged Nanostructures
Published
Author(s)
, , K. J. Alvine, Oleg Shpyrko, Yenling Dai, Alec Sandy, Suresh Narayanan
Abstract
The surface dynamics of thin molten polystyrene films supported by nanoscale periodic silicon line-space gratings were investigated with X-ray photon correlation spectroscopy. Surface dynamics over these nanostructures exhibit high directional anisotropy above certain length scales, as compared to surface dynamics over flat substrates. A cutoff wavelength in the dynamics perpendicular to the grooves is observed. This marks a transition from standard over-damped capillary wave behavior to suppressed dynamics due to substrate interactions.Citation
Physical Review Letters
Volume
109
Pub Type
Journals
Download Paper
Keywords
capillary waves, liquid films, polymers, viscosity, confinement, nanopatterning, X-ray photon correlation spectroscopy
Citation
Created November 16, 2012, Updated November 10, 2018