Capillary Wave Dynamics of Thin Polymer Films over Submerged Nanostructures
Journal Article
·
· Physical Review Letters, 109(20):Article No. 207801
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.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1055394
- Report Number(s):
- PNNL-SA-84197
- Journal Information:
- Physical Review Letters, 109(20):Article No. 207801, Journal Name: Physical Review Letters, 109(20):Article No. 207801
- Country of Publication:
- United States
- Language:
- English
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