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Soft-Crystal Motor Driven by Electron Beam Transmission

Research Project

Project/Area Number 16K13867
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Biological physics/Chemical physics/Soft matter physics
Research InstitutionWaseda University

Principal Investigator

Tabe Yuka  早稲田大学, 理工学術院, 教授 (50357480)

Co-Investigator(Kenkyū-buntansha) 杉澤 進也  早稲田大学, 理工学術院, 助手 (90732743)
坊野 慎治  早稲田大学, 理工学術院, 講師(任期付) (60778356)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords電子線による一方向回転 / 電荷移動液晶 / 自発的な対称性の破れ / 超分子モーター / 電荷移動高秩序液晶 / 電子線駆動回転 / 自発的な鏡面対称性の破れ / 交互積層分子配置 / 電子線によるトルク発生 / ソフトマター非平衡構造 / 電荷移動型液晶 / 低速電子顕微鏡
Outline of Final Research Achievements

We investigated the electron-beam-driven rotation of the smetic-E (SmE) liquid crystal (LC) composed of binary mixtures of charge-transferred (CT) LC compounds. Our experiment revealed that the constituent plate-like achiral LC molecules are alternatively arranged to form a herringbone lattice in each smectic layer plane, which makes the SmE films chiral under the normally incident electron beam. The rotational speed of the SmE films is nearly linear to the amount of the transferred charge between the molecules and also to the electron beam intensity. The result suggests that the electron beam could perturb the force balance between the CT molecules, which then gives rise to the non-zero torque to cause the rotation. The system may be used for novel supramolecular motors.

Academic Significance and Societal Importance of the Research Achievements

電荷移動を生じる2種分子を混合したとき、高秩序液晶相が発現することは以前から知られていたが、最も結晶に近いSmE相と呼ばれる液晶相において、2分子が交互に配置して矢筈格子を形成していることを明らかにした。この交互配置は、液晶で初めて見つかった構造である。さらに、この構造と線形流の組み合わせが自発的なカイラリティを生ぜしめることを示した。2種分子の配置によるプロペラ構造の発現、さらにこれを電子線照射で回す、という例はこれまでになく、新しいタイプの超分子モーターへの応用が期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (19 results)

All 2019 2018 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (13 results) (of which Int'l Joint Research: 9 results,  Invited: 6 results)

  • [Journal Article] Photo-Controllable Rotation of Cholesteric Double-Twist Cylinders2019

    • Author(s)
      Shinji Bono, Yuji Maruyama, Yuka Tabe
    • Journal Title

      Molecular Crystals and Liquid Crystals

      Volume: 印刷中 Issue: 1 Pages: 39-45

    • DOI

      10.1080/15421406.2019.1581703

    • NAID

      130008148179

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unusual Molecular Diffusion in an Induced SmA Phase Composed of Charge-Transferred Liquid Crystalline Mixtures2019

    • Author(s)
      Shoyo Takei Eiji Matsui, Yuka Tabe
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 88 Issue: 4 Pages: 044602-044602

    • DOI

      10.7566/jpsj.88.044602

    • NAID

      40021866642

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formation and dynamics of the aggregates of cholesteric double-twist cylinders2018

    • Author(s)
      Shinji Bono, Yuji Maruyama, Yuka Tabe
    • Journal Title

      Soft Matter

      Volume: 14 Issue: 48 Pages: 9798-9805

    • DOI

      10.1039/c8sm01565a

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formation of Concentric Silica Nanogrooves Guided by the Curved Surface of Silica Particles2018

    • Author(s)
      Hara Shintaro、Hirota Keiya、Tabe Yuka、Wada Hiroaki、Shimojima Atsushi、Kuroda Kazuyuki
    • Journal Title

      Langmuir

      Volume: 34 Issue: 4 Pages: 1733-1741

    • DOI

      10.1021/acs.langmuir.7b03777

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Unidirectional rotation of cholesteric droplets driven by UV-light irradiation2017

    • Author(s)
      Bono Shinji、Sato Sayumi、Tabe Yuka
    • Journal Title

      Soft Matter

      Volume: 13 Issue: 37 Pages: 6569-6575

    • DOI

      10.1039/c7sm00982h

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Unidirectional Heat Transport Driven by Rotating Cholesteric Droplets2017

    • Author(s)
      Sayumi Sato, Shinji Bono and Yuka Tabe
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 86 Issue: 2 Pages: 023601-023601

    • DOI

      10.7566/jpsj.86.023601

    • NAID

      40021098340

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Rigid-body Rotations of Chiral and Achiral Liquid Crystalline Droplets Driven by Linear Fluxes2018

    • Author(s)
      Yuka Tabe
    • Organizer
      Soft Matter Physics: from the perspective of the essential heterogeneity
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Heat-driven rotation of double-twist cylinder2018

    • Author(s)
      Yuka Tabe
    • Organizer
      The 9th Italian-Japanese Workshop on Liquid Crystals
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A thermomechanical coupling in cholesteric liquid crystals2018

    • Author(s)
      Yuka Tabe
    • Organizer
      The 13th International Meeting on Thermodiffusion
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Unidirectional Rotation of Double-Twist Cholesteric Cylinders Driven by Heat Flux2018

    • Author(s)
      Shinji Bono, Yuji Maruyama, Yuka Tabe
    • Organizer
      The 27th International liquid crystal conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Photo-induced Response of the Induced Smectic Phase2018

    • Author(s)
      Shinji Kuroda, Yuka Tabe
    • Organizer
      The 27th International liquid crystal conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 電子線照射により駆動される液晶性Soft Crystalの回転現象2017

    • Author(s)
      杉澤進也
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] Rotation of Nonchiral Soft Crystal by Electron Beam Irradiation2017

    • Author(s)
      多辺由佳
    • Organizer
      The 7th Toyota RikenWorkshop, CHIRALITY IN SOFT MATTER
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 電荷移動スメクチックE相の光誘起ダイナミクス2017

    • Author(s)
      黒田慎二、多辺由佳
    • Organizer
      2017年度日本液晶学会討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] 誘起高秩序液晶相におけるキャリア輸送特性評価2017

    • Author(s)
      竹井翔洋、多辺由佳
    • Organizer
      2017年度日本液晶学会討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] Unidirectional Rotation of an Achiral Soft Crystal Driven by Low-energy Electron-beam2017

    • Author(s)
      多辺由佳
    • Organizer
      Chirality 2017: ISCD-29
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 電子線照射により駆動される液晶性Soft Crystalの回転現象2017

    • Author(s)
      杉澤進也、多辺由佳
    • Organizer
      日本物理学会第72回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Rotation of Soft Crystal by Electron-Beam Irradiation2016

    • Author(s)
      Shin-ya Sugisawa
    • Organizer
      26th International Liquid Crystal Conference
    • Place of Presentation
      Kent, USA
    • Year and Date
      2016-08-01
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Flow-driven rotations of achiral 2D crystals and chiral nematic droplets embedded in liquid films2016

    • Author(s)
      Yuka Tabe
    • Organizer
      26th International Liquid Crystal Conference
    • Place of Presentation
      Kent, USA
    • Year and Date
      2016-08-01
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2020-03-30  

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