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Fundamental studies on liquid crystal compound with larger dielectric permittivity than 10000

Research Project

Project/Area Number 18H03920
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 35:Polymers, organic materials, and related fields
Research InstitutionKyushu University

Principal Investigator

Kikuchi Hirotsugu  九州大学, 先導物質化学研究所, 教授 (50186201)

Co-Investigator(Kenkyū-buntansha) 奥村 泰志  九州大学, 先導物質化学研究所, 准教授 (50448073)
樋口 博紀  九州大学, 先導物質化学研究所, 助教 (50432951)
Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥43,420,000 (Direct Cost: ¥33,400,000、Indirect Cost: ¥10,020,000)
Fiscal Year 2022: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2021: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2020: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2019: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
Fiscal Year 2018: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Keywords液晶 / 強誘電性 / 自発分極 / 誘電率 / ネマチック / スメクチック / 高誘電率 / 非線形光学 / 分子配向 / 誘電異方性 / 強誘電性液晶 / ネマチック相 / 分子配列
Outline of Final Research Achievements

Our research group has discovered a new liquid crystalline material that exhibits ferroelectricity even though it is a fluid. However, the mechanism of the appearance of ferroelectricity has not been clarified, and the temperature range of the appearance is considerably higher than room temperature, so there have been some problems in its application. In this study, we synthesized novel liquid crystal compounds that exhibits ferroelectricity, investigated the correlation between molecular structure and ferroelectricity, and clarified that a dipole moment of a certain magnitude in the direction of the molecular long axis is important. In addition, we succeeded in developing a material that exhibits ferroelectricity near room temperature by utilizing the eutectic melting phenomenon in mixed systems. Furthermore, we succeeded in visualizing the orientation state of molecules in a domain using a device of our own design.

Academic Significance and Societal Importance of the Research Achievements

従来までに見出されていた強誘電性液晶は、構造の対称性を極性が生じるように下げることで達成されてきた。本研究で見出された強誘電性液晶は高い対称性を有し、分子間の双極子モーメント同士の相互作用により形成される点で特異である。本研究成果はソフトマター分野に直接型強誘電性液晶という新たな領域を切り拓いた点に学術的意義を有する。また、形状の自由度を有しながら大きな自発分極や誘電率を示すため、外場応答性の機能性材料として唯一無二の応用が期待され、社会的意義も大きい。本研究により室温付近に強誘電性を示す材料の開発に成功したことから、さらに応用のポテンシャルは高まったと言える。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (50 results)

All 2023 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (14 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 14 results,  Open Access: 6 results) Presentation (35 results) (of which Int'l Joint Research: 6 results,  Invited: 9 results)

  • [Int'l Joint Research] Dongguk University-Seoul/Suncheon Jeil College(韓国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Synthesis of liquid crystals bearing 1,3-dioxane structures and characterization of their ferroelectricity in the nematic phase2023

    • Author(s)
      Matsukizono Hiroyuki、Iwamatsu Koki、Endo Sota、Anan Shizuka、Okumura Yasush、Kikuchi Hirotsugu
    • Journal Title

      Journal of Materials Chemistry C

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fluid Layered Ferroelectrics with Global C∞v Symmetry2022

    • Author(s)
      Kikuchi Hirotsugu、Matsukizono Hiroyuki、Iwamatsu Koki、Endo Sota、Anan Shizuka、Okumura Yasushi
    • Journal Title

      Advanced Science

      Volume: 9 Issue: 26 Pages: 2202048-2202048

    • DOI

      10.1002/advs.202202048

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhancement of Polymer Structural Ordering in Polymer-Stabilised Blue Phases for Improved Electro-Optical Properties2021

    • Author(s)
      Hirotsugu Kikuchi, Takahiro Ashimine, Zehui Qin, Hiroki Higuchi, Shizuka Anan, Yasushi Okumura
    • Journal Title

      SYMMETRY-BASEL

      Volume: 13 Issue: 5 Pages: 772-772

    • DOI

      10.3390/sym13050772

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Polymer-Stabilized Blue Phase and Its Application to a 1.5 mu m Band Wavelength Selective Filter2021

    • Author(s)
      Seiji Fukushima, Kakeru Tokunaga, Takuya Morishita, Hiroki Higuchi, Yasushi Okumura, Hirotsugu Kikuchi, Hidehisa Tazawa
    • Journal Title

      CRYSTALS

      Volume: 11 Issue: 9 Pages: 1017-1017

    • DOI

      10.3390/cryst11091017

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultraviolet light screen using cholesteric liquid crystal capsules on the basis of selective reflection2021

    • Author(s)
      Heemuk Oh, Hirotugu Kikuchi, Ji Hyun Lee, Su Ji Kim, Jun Bae Lee, Moon Sun Cho, Min Young Lee, Yasushi Okumura, Joo-Hee Hong, Sung-Kyu Hong
    • Journal Title

      RSC ADVANCES

      Volume: 11 Issue: 41 Pages: 25471-25471

    • DOI

      10.1039/d1ra03499e

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] High-Performance Polymer Dispersed Liquid Crystal Enabled by Uniquely Designed Acrylate Monomer2020

    • Author(s)
      Kizhakidathazhath Rijeesh、Nishikawa Hiroya、Okumura Yasushi、Higuchi Hiroki、Kikuchi Hirotsugu
    • Journal Title

      Polymers

      Volume: 12 Issue: 8 Pages: 1625-1625

    • DOI

      10.3390/polym12081625

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A fluid liquid crystal with ferroelectric-like order2019

    • Author(s)
      Nishikawa Hiroya、Shiroshita Kazuya、Higuchi Hiroki、Okumura Yasushi、Haseba Yasuhiro、Yamamoto Shin-ichi、Sago Koki、Kikuchi Hirotsugu
    • Journal Title

      EMERGING LIQUID CRYSTAL TECHNOLOGIES XIV

      Volume: 10941 Pages: 1094106-1094106

    • DOI

      10.1117/12.2507189

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationship between molecular structures of uniquely designed C2-symmetric axially chiral dopants and their helical twisting properties in cholesteric liquid crystals2019

    • Author(s)
      Yoshizawa Daisuke、Higuchi Hiroki、Okumura Yasushi、Kikuchi Hirotsugu
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 7 Issue: 8 Pages: 2225-2231

    • DOI

      10.1039/c8tc05296d

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Decreasing the operating voltage of a polymer-stabilized blue phase based on intermolecular affinity2019

    • Author(s)
      Yoshizawa Daisuke、Okumura Yasushi、Yamamoto Jun、Kikuchi Hirotsugu
    • Journal Title

      Polymer Journal

      Volume: 51 Issue: 7 Pages: 667-673

    • DOI

      10.1038/s41428-019-0183-6

    • NAID

      40021935966

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 強誘電ネマチック?―巨大分極秩序発現メカニズムの解明に迫る―2019

    • Author(s)
      西川浩矢,城下和也,樋口博紀,奥村泰志,長谷場康宏,山本真一,佐郷弘毅,菊池裕嗣
    • Journal Title

      日本液晶学会誌

      Volume: 23 Pages: 35-45

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of polymer backbone flexibility on blue phase liquid crystal stabilization2018

    • Author(s)
      Rijeesh Kizhakidathazhath, Hiroki Higuchi, Yasushi Okumura, Hirotsugu Kikuchi
    • Journal Title

      Journal of Molecular Liquids

      Volume: 262 Pages: 175-179

    • DOI

      10.1016/j.molliq.2018.04.085

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Orientation of liquid crystalline blue phases on unidirectionally orienting surfaces2018

    • Author(s)
      Takahashi Misaki、Ohkawa Takuma、Yoshida Hiroyuki、Fukuda Jun-ichi、Kikuchi Hirotsugu、Ozaki Masanori
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 51 Issue: 10 Pages: 104003-104003

    • DOI

      10.1088/1361-6463/aaaa4b

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stabilizer-Concentration Effects on the Size of Gold Submicrometer-Sized Spherical Particles Prepared Using Laser-Induced Agglomeration and Melting of Colloidal Nanoparticles2018

    • Author(s)
      Takeshi Tsuji, Shota Sakaki, Hideki Fujiwara, Hirotsugu Kikuchi, Masaharu Tsuji, Yoshie Ishikawa, Naoto Koshizaki
    • Journal Title

      Journal of Physical Chemistry C

      Volume: 122 Issue: 37 Pages: 21659-21666

    • DOI

      10.1021/acs.jpcc.8b05911

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical calculation of Kossel diagrams of cholesteric blue phases2018

    • Author(s)
      Fukuda Jun-ichi、Okumura Yasushi、Kikuchi Hirotsugu
    • Journal Title

      Proceedings of SPIE

      Volume: 10555 Pages: 1-6

    • DOI

      10.1117/12.2286290

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Liquid crystals with longitudinal ferroelectricity2022

    • Author(s)
      H. Kikuchi, H. Kikuchi, H. Matsukizono, K. Iwamatsu, S. Endo, S. Anan, Y. Okumura
    • Organizer
      19 th Optics of Liquid Crystals SWS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 共焦点レーザー走査型顕微鏡を用いた強誘電性ネマチック相の配向ベクトルおよび分極ドメイン構造の解明2022

    • Author(s)
      瀬戸口貴裕、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      第59回化学関連支部合同九州大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 強誘電性ネマチック相の縞状ドメインにおける配向ベクトルの3D空間イメージング2022

    • Author(s)
      瀬戸口貴裕、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      2022年 日本液晶学会討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 液晶/高分子複合体の低温における異常遅延応答とその改善に向けた材料開発2022

    • Author(s)
      柴田真人、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      2022年 日本液晶学会討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 液晶/高分子複合体の電気光学応答特性の温度およびモノマー種依存性2022

    • Author(s)
      柴田真人、阿南静佳、奥村泰志、菊池裕嗣
    • Organizer
      第59回化学関連支部合同九州大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 液晶/金属-有機構造体の複合体が示す複屈折と結晶構造の対称性2022

    • Author(s)
      中野紗希、阿南静佳、奥村泰志、菊池裕嗣
    • Organizer
      2022年 日本液晶学会討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 液晶配向の全方位に対して弱アンカリングを示す界面の創製2022

    • Author(s)
      坂本裕亮, 松木囿裕之, 阿南静佳,奥村泰志, 菊池裕嗣
    • Organizer
      2022年 日本液晶学会討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 混合誘起融点降下に基づくエナンチオトロピック強誘電性ネマチック相の発現温度範囲の制御2022

    • Author(s)
      角折洋樹, 奥村泰志, 阿南静佳, 菊池裕嗣
    • Organizer
      2022年 日本液晶学会討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 液晶と金属-有機構造体の複合体が示す光学特性と有機配位子の置換位置と種類の影響2022

    • Author(s)
      山口将生, 阿南静佳, 奥村泰志, 菊池裕嗣
    • Organizer
      2022年 日本液晶学会討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Liquid Crystal/Polymer Composites for Electro-optics2021

    • Author(s)
      H. Kikuchi
    • Organizer
      The Eighth International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies(EM-NANO 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Observation of Polymer Structure and Electric-field Response of Liquid Crystal Director in Composite Films Consisting of Liquid Crystal and Highly Oriented Polymer2021

    • Author(s)
      Y. Okumura, E. Ishida, S. Niiyama, H. Kikuchi
    • Organizer
      19 th Optics of Liquid Crystals
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 様々な官能基を有するMOF中での液晶分子の配向2021

    • Author(s)
      山口将生、阿南静佳、奥村泰志、菊池裕嗣
    • Organizer
      第70回高分子年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高極性液晶を用いた誘電アクチュエータゲルの創製2021

    • Author(s)
      城﨑紗也、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      第58回化学関連支部合同九州大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 様々な官能基を有するMOFと液晶複合体が示す光学的異方性の温度応答性2021

    • Author(s)
      山口将生、阿南静佳、奥村泰志、菊池裕嗣
    • Organizer
      第58回化学関連支部合同九州大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 液晶/高分子複合体の低温における電気光学応答と高分子構造2021

    • Author(s)
      柴田 真人、阿南 静佳、奥村 泰志、菊池 裕嗣
    • Organizer
      2021年九州地区高分子若手研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 強誘電性ネマチック相発現の分子構造依存性2021

    • Author(s)
      岩松孝紀、松木囿裕之、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超解像顕微鏡を用いた高分子鑑定家液晶中の高分子構造の観察2021

    • Author(s)
      本平和也、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 強誘電性ネマチック液晶を母液晶とするブルー相の創製2021

    • Author(s)
      冝保太斗、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 強誘電性ネマチック液晶を用いた誘電エラストマーアクチュエータ2021

    • Author(s)
      城﨑紗也、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 液晶/MOF複合体が示す複屈折の温度応答性に及ぼすMOF細孔の化学的性質の影響2021

    • Author(s)
      山口将生、阿南静佳、奥村泰志、菊池裕嗣
    • Organizer
      2021年日本液晶学会討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 強誘電性ネマチック液晶を母液相とする高分子安定化ブルー相の創製2021

    • Author(s)
      冝保太斗、奥村泰志、阿南静佳、菊池裕嗣
    • Organizer
      2021年九州地区高分子若手研究会・冬の講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高誘電率を示す新規液晶相 ― 強誘電性ネマチック相? ―2020

    • Author(s)
      菊池裕嗣, 西川浩矢, 城下和也, 遠藤聡太, 水城裕太, 祝迫宏記, 阿南静佳, 樋口博紀, 奥村泰志, 山本真一, 佐郷弘毅, 長谷場康宏
    • Organizer
      日本液晶学会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 高極性液晶における液晶配向ベクトルの観察2020

    • Author(s)
      祝迫宏記, 奥村泰志, 阿南静佳, 山本真一, 佐郷弘毅, 菊池裕嗣
    • Organizer
      日本液晶学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 全方向に弱アンカリングを示す液晶/基板界面の開発2020

    • Author(s)
      有村優奈, 阿南静佳, 奥村泰志, 菊池裕嗣
    • Organizer
      日本液晶学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 規則的な分子配列を有するMOF中でのシアノビフェニル系液晶の配向2020

    • Author(s)
      阿南静佳, 菊池裕嗣
    • Organizer
      日本液晶学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 分子配向型高分子/液晶複合膜の相分2020

    • Author(s)
      奥村泰志, 石田瑛一, 阿南静佳, 新山 聡, 菊池裕嗣
    • Organizer
      日本液晶学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] アンカリングフラストレーションによる液晶の界面アンカリング制御2020

    • Author(s)
      有村優奈, 阿南静佳, 奥村泰志, 菊池裕嗣
    • Organizer
      高分子学会討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] シランカップリング剤による液晶界面のアンカリング制御2020

    • Author(s)
      有村優奈, 阿南静佳, 奥村泰志, 菊池裕嗣
    • Organizer
      高分子学会年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 液晶/高分子複合系の構造と機能発現2020

    • Author(s)
      菊池 裕嗣
    • Organizer
      日本学術振興会情報科学用有機材料第142委員会合同研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ジオキサン基を有する高極性液晶化合物の誘電緩和測定2019

    • Author(s)
      遠藤 聡太・奥村 泰志・山本 真一・佐郷 弘毅・菊池 裕嗣
    • Organizer
      2019年日本液晶学会 討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Fluorescence imaging of director spatial distribution in liquid crystal blue phases using dichroic dyes2018

    • Author(s)
      Yasushi Okumura, Takaaki Narita, Jun-ichi Fukuda, Hiroki Higuchi, Hirotsugu Kikuchi
    • Organizer
      27th International Liquid Crystal Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ferroelectric-like Properties in Fluid Liquid Crystals2018

    • Author(s)
      Hirotsugu Kikuchi
    • Organizer
      CEMS Topical Meeting on Modern Ferroelectrics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 強誘電性と流動性を併せ持つ新規液晶2018

    • Author(s)
      菊池裕嗣
    • Organizer
      日本学術振興会情報科学用有機材料第142委員会合同研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Electro-optical properties of LC/polymer composite materials based on slippery interface2018

    • Author(s)
      Hirotsugu Kikuchi
    • Organizer
      The 3rd CBNU-CREST workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 共焦点レーザー走査型顕微鏡を用いた高分子安定化ブルー相の観察2018

    • Author(s)
      奥村泰志
    • Organizer
      2018年度 液晶化学・材料研究フォーラム
    • Related Report
      2018 Annual Research Report
    • Invited

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Published: 2018-04-23   Modified: 2024-01-30  

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