Structural observation of block copolymer thin films with transmission electron microtomography and neutron reflectivity

Ken Ichi Niihara, Yukihiro Nishikawa, Hiroshi Jinnai, Naoya Torikai, Toshio Nishi

Research output: Contribution to conferencePaper

Abstract

Microphase-separated structures of a Poly(deuterated styrene-block-2- vinylpyridine) (dPS-b-PVP) thin films were studied by transmission electron microtomography (TEMT) and neutron reflectivity (NR). Note that the dPS-b-P2VP shows cylindrical morphology in a bulk state. The thin film was prepared by spin-coating on a Si substrate, and then annealed at 170°C for 14 days before TEMT and NR experiments. Three-dimensional (3D) volume data was obtained by TEMT. The concentration profile of dPS in direction perpendicular to the substrate, i.e. depth profiles, was independently obtained from 3D volume data and NR. In addition, the concentration profile obtained by TEMT was used as an initial guess in a model fitting of reflectivity profile. We examine the validity of such model fitting in the reflectivity measurements.

Original languageEnglish
Pages4308-4309
Number of pages2
Publication statusPublished - 2006 Dec 1
Externally publishedYes
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: 2006 Sep 202006 Sep 22

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
CountryJapan
CityToyama
Period06/9/2006/9/22

Keywords

  • Block copolymer
  • Neutron reflectivity
  • Thin film(s)
  • Transmission electron microtomography

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Niihara, K. I., Nishikawa, Y., Jinnai, H., Torikai, N., & Nishi, T. (2006). Structural observation of block copolymer thin films with transmission electron microtomography and neutron reflectivity. 4308-4309. Paper presented at 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, Japan.