Capillary wave dynamics of thin polymer films over submerged nanostructures

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 s...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2012-11, Vol.109 (20), p.207801-207801, Article 207801
Main Authors: Alvine, K J, Dai, Y, Ro, H W, Narayanan, S, Sandy, A R, Soles, C L, Shpyrko, O G
Format: Article
Language:English
Subjects:
Anisotropy
Microscopy, Atomic Force - methods
Models, Chemical
Nanostructures - chemistry
Photoelectron Spectroscopy - methods
Polystyrenes - chemistry
Silicon - chemistry
Surface Properties
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 length scale 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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.109.207801