| Author(s): |
August W. Bosse; Jack F. Douglas; Brian Berry; Ronald L. Jones; Alamgir Karim; |
| Title: |
Block Copolymer Ordering With a Spatiotemporally Inhomogeneous Mobility |
| Published: |
November 20, 2007 |
| Abstract: |
Motivated by recent measurements of zone annealing in block copolymer films at low temperatures, we implement a spatiotemporal mobility gradient with intrinsic variations associated with dynamic heterogeneities in the saddle point relaxation of a diblock copolymer self-consistent field theory. This model of the dynamics provides insight into the nature of the ordering front observed in low-temperature zone annealing experiments. Specifically, we demonstrate that a spatiotemporallyinhomogeneous mobility can be successfully implemented as a means to control microdomain ordering in block copolymer systems. Furthermore, the simulations suggest that glass physics can play an important role in the ordering of block copolymer microdomains. |
| Citation: |
Physical Review Letters |
| Volume: |
99 |
| Pages: |
4 pp. |
| Keywords: |
block copolymers;defects;glass transition;mobility;ordering;SCFT;simulation;zone annealing;zone refinement |
| Research Areas: |
Polymers, Block copolymer lithography |
| PDF version: |
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