Moiré Patterns in Superimposed Nanoporous Thin Films Derived from Block-Copolymer Assemblies

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• 作者：Valeriy Luchnikov ; Alexey Kondyurin ; Petr Formanek ; Hannes Lichte ; Manfred Stamm
• 刊名：Nano Letters
• 出版年：2007
• 出版时间：December 2007
• 年：2007
• 卷：7
• 期：12
• 页码：3628 - 3632
• 全文大小：462K
• 年卷期：v.7,no.12(December 2007)
• ISSN：1530-6992

文摘

Nanoscale rotation moiré patterns are observed in double-layer nanoporous thin films produced with use of block-copolymer self-assembly.Periodic hexagonal moiré superstructures appear when the films possessing long-range order are superimposed at small misorientationangles. Overlapping films misoriented by angles close to 30 generate aperiodic quasi-crystal-like superstructures with 5-fold symmetries.The stacking of the disordered nanoporous films produces labyrinth-like patterns. Block-copolymer moiré superstructures are promising asnanolithography masks with controllable morphology and periodicity.