Learning Reduced Order Dynamics via Geometric Representations
Imran Nasim, Melanie Weber
SCML 2024
A method for controlling the local defectivity of self-assembled polymer patterns through appropriate substrate design was detailed. The method of surface engineering to control defect location provided a way to impose local pattern perfection on thermodynamic self-assembling systems with high energy barriers for defect annihilation. Method for forming defect-free local areas in symmetric PS-b-PMMA thin film striped patterns involves engineering surface geometries with appropriate surface and intercenter facial tensions, defining confined volumes commensurate to intrinsic polymer dimensions for free-energy minimization and promoting polymer shear flow along preferred directions. The technique optimized the polymer interfacial interactions, commensurability effects, and polymer shear flow in forming aligned defect-free lamellar striped patterns with a two dimensional (2D) density profile suitable for lithographic applications.
Imran Nasim, Melanie Weber
SCML 2024
Mitsuru Ueda, Hideharu Mori, et al.
Journal of Polymer Science Part A: Polymer Chemistry
Ming L. Yu
Physical Review B
Peter J. Price
Surface Science