3D observation of Hexagonally Perforated Layer (HPL) structure in block copolymer thin films

Koji Sawa, Yukihiro Nishikawa, Hiroshi Jinnai, Taihyun Chang, Toshio Nishi

Research output: Contribution to conferencePaper

Abstract

Three-dimentional structure of poly(styrene-block-isoprene) (SI) diblock copolymer thin films was studied by means of transmission electron microtomography (TEMT). After annealing at 120°C, it was found that the SI thin film spin-coated on silicon wafer exhibited Hexagonally Perforated Layer (HPL) morphology with its lamellae highly oriented parallel to the substrate. The stacking sequences of HPL channels can be modeled as both AB-stacking and ABC-stacking patterns, as illustrated in Fig. 1. As a result of three-dimensional observation, we found that this sample formed ABC-stacking.

Original languageEnglish
Number of pages1
Publication statusPublished - 2006 Oct 18
Externally publishedYes
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: 2006 May 242006 May 26

Other

Other55th SPSJ Annual Meeting
CountryJapan
CityNagoya
Period06/5/2406/5/26

Keywords

  • Block copolymer
  • Hexagonally Perforated Layer
  • Thin films
  • Transmission Electron Microtomography

ASJC Scopus subject areas

  • Engineering(all)

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    Sawa, K., Nishikawa, Y., Jinnai, H., Chang, T., & Nishi, T. (2006). 3D observation of Hexagonally Perforated Layer (HPL) structure in block copolymer thin films. Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan.