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 conferencePaperpeer-review

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
Pages927
Number of pages1
Publication statusPublished - 2006
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: 2006 May 242006 May 26

Conference

Conference55th SPSJ Annual Meeting
Country/TerritoryJapan
CityNagoya
Period06/5/2406/5/26

Keywords

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

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