A Simple Route for Preparation of Nanoporous Templates

POSTER

Abstract

Spin-coating method of block copolymers represents a very simple means of producing thin films for the fabrication of nanostructured materials. However, the orientation and long-range ordering of the block copolymer microdomains must be controlled to maximize areal density. Here, spin coated films of poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) diblock copolymers in THF/toluene solvent mixtures were investigated and it was found that highly oriented cylindrical microdomains with long-range lateral order were obtained on a variety of substrates, such as silicon oxide, polystyrene, polyimide, poly(butylene terephthalate), and germanium. The preferential solvation of P4VP block with an alcohol enabled a surface reconstruction to produce a structure of the block copolymer film that leads to the generation of a nanoporous template upon drying. The gold evaporation on the reconstructed films produces thermally stable and plasma resistant films.

Authors

  • Soojin Park

    University of Massachusetts, Amherst

  • Jia-Yu Wang

    University of Massachusetts, Amherst

  • Bokyung Kim

    University of Massachusetts, Amherst

  • Thomas Russell

    University of Massachusetts, Dept. of Polymer Science and Engineering, University of Massachusetts at Amherst, Polymer Science and Engineering Department, University of Massachusetts Amherst, Department of Polymer Science \& Engineering, University of Massachusetts, Amherst, MA 01003, USA, University of Massachusetts, Amherst, Dept. of Polymer Science and Engineering, Univ. of Massachusetts, Amherst, Dept. of Polymer Science and Engineering, Univ. of Massachusetts Amherst, Polymer Science and Engineering, Univ. of Massachusetts Amherst, Department of Polymer Science and Engineering,University of Massachusetts-Amherst