Nano Archive

A simple route to highly oriented and ordered nanoporous block copolymer templates

Park, Soojin and Wang, Jia-Yu and Kim, Bokyung and Xu, Ji and Russell, Thomas P. (2008) A simple route to highly oriented and ordered nanoporous block copolymer templates. ACS NANO, 2 (4). pp. 766-772.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/nn7004415

Abstract

Controlling the orientation and lateral ordering of the block copolymer microdomains is essential to their use as templates and scaffolds for the fabrication of nanostructured materials. In addition, a process must be robust, simple to implement, and rapid, and should not introduce disruptive processing steps that would impede their use. Here, we describe thin films of poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) diblock copolymers, spin-coated from mixed solvents that show highly oriented, cylindrical microdomains with a high degree of order on a wide range of substrates, including silicon oxide, polystyrene, germanium, polyimide, and poly(butylene terephthalate). In addition, the preferential solvation of the P4VP block with an alcohol caused a surface reconstruction that resulted in the formation of a nanoporous film upon drying. The evaporation of gold onto the reconstructed films produced thermally stable and reactive ion etching resistant films.

Item Type:Article
Uncontrolled Keywords:PS-b-P4VP; surface reconstruction; block copolymer; perpendicular orientation; gold evaporation; reactive ion etching
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:5898
Deposited By:IoN
Deposited On:29 Jul 2009 13:45
Last Modified:29 Jul 2009 13:45

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