Directed assembly of lamellae forming block copolymer thin films near the order-disorder transition.
نویسندگان
چکیده
The impact of thin film confinement on the ordering of lamellae was investigated using symmetric poly(styrene-b-[isoprene-ran-epoxyisoprene]) diblock copolymers bound by nonpreferential wetting interfaces. The order-disorder transition temperature (TODT) and the occurrence of composition fluctuations in the disordered state are not significantly affected by two-dimensional confinement. Directed self-assembly using chemical patterning is demonstrated near TODT. These results establish the minimum feature size attainable using directed self-assembly of a given diblock copolymer system.
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ورودعنوان ژورنال:
- Nano letters
دوره 14 1 شماره
صفحات -
تاریخ انتشار 2014