Transformations in wrinkle patterns: cooperation between nanoscale cross-linked surface layers and the submicrometer bulk in wafer-spun, plasma-treated polydimethylsiloxane.
We demonstrate control of the topography of strain-induced wrinkle patterns through the interplay between the bulk and the nanoscale cross-linked top layer of plasma treated, spin-coated polydimethylsiloxane (PDMS) thin films. The different morphological phases observed, varying from herringbones to caps, are in agreement with recent theoretical predictions. The cap phase exhibits short-range 3-fold-symmetric close-packed self-organization, demonstrating a bottom-up pathway toward the wafer-scale production of ordered, nanoscale patterns on surfaces.
Evensen
H T
HT
Department of Chemistry and Engineering Physics, University of Wisconsin-Platteville, USA.
Jiang
H
H
Gotrik
K W
KW
Denes
F
F
Carpick
R W
RW
D002244:Carbon / Q000737:chemistry; D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D036103:Nanotechnology; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D012825:Silicon / Q000737:chemistry; D013499:Surface Properties
D004129:Dimethylpolysiloxanes; D002244:Carbon; D010100:Oxygen; D012825:Silicon