Observation of dynamic behavior of lithographically induced self-assembly of supramolecular periodic pillar arrays in a homopolymer film
- 10 September 2001
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 79 (11) , 1688-1690
- https://doi.org/10.1063/1.1398616
Abstract
The dynamic behavior of lithographically induced self-assembly (LISA), a newly discovered pattern formation phenomenon, was recorded and analyzed with real time video. Two surprising and intriguing phenomena were observed. First, a LISA pillar array was formed in an orderly manner starting under the corners of a mask pattern, then the edges, and later propagating to the center of the mask pattern. Second, the time interval between the formation of two subsequent LISA pillars has a shell structure. The observation presents evidence critical to uncovering the physical origin of this phenomenon, which is believed to be related to the interplay of electrodynamics, fluid hydrodynamics, and polymer chemistry at the nanometer scale.Keywords
This publication has 8 references indexed in Scilit:
- Lithographically induced self-assembly of periodic polymer micropillar arraysJournal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1999
- Lithographically induced self-construction of polymer microstructures for resistless patterningApplied Physics Letters, 1999
- Onset of Surface-Tension-Driven Bénard ConvectionPhysical Review Letters, 1995
- Pattern formation outside of equilibriumReviews of Modern Physics, 1993
- Transitions between patterns in thermal convectionPhysical Review Letters, 1991
- Transition from a uniform state to hexagonal and striped Turing patternsNature, 1991
- Block Copolymer Thermodynamics: Theory and ExperimentAnnual Review of Physical Chemistry, 1990
- LIX. On convection currents in a horizontal layer of fluid, when the higher temperature is on the under sideJournal of Computers in Education, 1916