• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Polymer film containing nano-scale liquid-crystalline droplet with faint interfaces and its fast electro-optic device application

Research Project

Project/Area Number 25630125
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Electronic materials/Electric materials
Research InstitutionOsaka University

Principal Investigator

OZAKI Masanori  大阪大学, 工学(系)研究科(研究院), 教授 (50204186)

Co-Investigator(Kenkyū-buntansha) FUJII Akihiko  大阪大学, 大学院工学研究科, 准教授 (80304020)
YOSHIDA Hiroyuki  大阪大学, 大学院工学研究科, 助教 (80550045)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords液晶 / 電気光学効果 / 高分子 / ナノコンポジット / 高速応答 / 相分離 / 偏光回転子 / 複合膜 / 光重合
Outline of Final Research Achievements

Response time after removing applied voltage is one of the most important problems in the liquid crystal devices. We have developed a polymer/liquid-crystal composite film showing short response time of the order of microsecond, which contains nano-droplet of liquid crystal with faint interfaces between polymer matrix and liquid crystal molecules. During the polymerization process to fabricate the composite film, we used mesogenic molecules as a monomer and optimized polymerization parameters such as process temperature and concentration of the monomer. Because the droplet size is less than wavelength of the light, the composite film shows electro-optic response without scattering. As an example of the device application of the composite film, we have demonstrated the fast electrical tuning of the selective reflection band wavelength and polarization rotation in the cholesteric film based on the nano-composite.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (16 results)

All 2015 2014 2013

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Acknowledgement Compliant: 2 results) Presentation (11 results) (of which Invited: 7 results)

  • [Journal Article] Anisotropy of The Electro-Optic Kerr Effect in Polymer-Stabilized Blue Phases2015

    • Author(s)
      Yuto Kawata
    • Journal Title

      Physical Review E

      Volume: 91 Issue: 2 Pages: 022503-022503

    • DOI

      10.1103/physreve.91.022503

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Nematic liquid crystal nanocomposite with scattering-free, microsecond electro-optic response2014

    • Author(s)
      Yo Inoue, Hiroyuki Yoshida, Masanori Ozaki
    • Journal Title

      Optical Materials Express

      Volume: 4 Issue: 5 Pages: 916-923

    • DOI

      10.1364/ome.4.000916

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Secondary Electro-Optic Effect in Liquid Crystalline Cholesteric Blue Phases2014

    • Author(s)
      Hiroyuki Yoshida, Shuhei Yabu, Hiroki Tone, Yuto Kawata, Hirotsugu Kikuchi, and Masanori Ozaki
    • Journal Title

      Opt. Mater. Express

      Volume: 4 Issue: 5 Pages: 960-968

    • DOI

      10.1364/ome.4.000960

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of anisotropic lattice deformation on the Kerr coefficient of polymer-stabilized blue-phase liquid crystals2014

    • Author(s)
      Hiroki Tone, Hiroyuki Yoshida, Shuhei Yabu, Masanori Ozaki, and Hirotsugu Kikuchi
    • Journal Title

      Phys. Rev. E

      Volume: 89 Issue: 1 Pages: 012506-012506

    • DOI

      10.1103/physreve.89.012506

    • NAID

      120006840988

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electro-Optics of Cubic and Tetragonal Blue Phase Liquid Crystals Investigated by Two-Beam Interference Microscopy2013

    • Author(s)
      Hiroyuki Yoshida
    • Journal Title

      Applied Physics Express

      Volume: 6 Pages: 62603-62603

    • NAID

      10031181970

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Properties and applications of nano-pore dispersed liquid crystals2015

    • Author(s)
      Hiroyuki Yoshida
    • Organizer
      SPIE Photonics West
    • Place of Presentation
      San Francisco, California, USA
    • Year and Date
      2015-02-07 – 2015-02-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Dependence of the electro-optic response on the helical pitch in nano-pore dispersed cholesteric liquid crystals2015

    • Author(s)
      Hoekyung Kim
    • Organizer
      The 2nd Asian Conference on Liquid Crystals
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2015-01-19 – 2015-01-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] Scattering-Free, Microsecond Electro-Optic Response Based on Polymer/LC Nanocomposite2014

    • Author(s)
      Masanori Ozaki
    • Organizer
      The 21st International Display Workshops (IDW ’14)
    • Place of Presentation
      Niigata, Japan
    • Year and Date
      2014-12-03 – 2014-12-05
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Nanocomposite Film based on Photo-polymerized Liquid Crystal and Its Microsecond Electro-optic Response2014

    • Author(s)
      Masanori Ozaki
    • Organizer
      The 5th Workshop on Liquid Crystals for Photonics
    • Place of Presentation
      Erice Italy
    • Year and Date
      2014-09-02 – 2014-09-07
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Micro-second electro-optic modulation in polymer/liquid-crystal nanocomposite films2014

    • Author(s)
      Masanori Ozaki
    • Organizer
      SPIE Optics and Photonics
    • Place of Presentation
      San Diego, California, United States
    • Year and Date
      2014-08-17 – 2014-08-21
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] コレステリック液晶―高分子ナノコンポジットの構造と電気光学特性2014

    • Author(s)
      尾崎雅則
    • Organizer
      第61 回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学相模原キャンパス
    • Related Report
      2013 Research-status Report
  • [Presentation] Micro-second electro-optic switching in liquid crystal film with nano-pore filled with liquid crystal2013

    • Author(s)
      Masanori Ozaki
    • Organizer
      13th International Meeting on Information Display (IMID 2013)
    • Place of Presentation
      Daegu, Korea
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Micro-second Electro-optic Modulation in Photo-polymerized Liquid Crystal Films Containing Nano-size Liquid-crystal Droplets2013

    • Author(s)
      Masanori Ozaki
    • Organizer
      15th Topical Meeting on the Optics of Liquid Crystals (OLC2013)
    • Place of Presentation
      Hawaii, USA.
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 低濃度液晶モノマーにより安定化されたコレステリック液晶の電気光学特性2013

    • Author(s)
      井上曜
    • Organizer
      2013年日本液晶学会討論会
    • Place of Presentation
      大阪大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Characterization of the Optical Properties of Nano-pore Dispersed Cholesteric Liquid Crystals2013

    • Author(s)
      金會慶
    • Organizer
      2013年日本液晶学会討論会
    • Place of Presentation
      大阪大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 低温重合により作製された高分子安定化コレステリック液晶の光学特性2013

    • Author(s)
      井上曜
    • Organizer
      第74回応用物理学会学術講演会
    • Place of Presentation
      同志社大学
    • Related Report
      2013 Research-status Report
    • Invited

URL: 

Published: 2014-07-25   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi