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Fabrication of functional single molecular bilayers of liquid crystalline organic semiconductors achieved via two-dimensional intralayer phase separation

Research Project

Project/Area Number 17K14370
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Biological physics/Chemical physics/Soft matter physics
Research InstitutionThe University of Tokyo

Principal Investigator

Arai Shunto  東京大学, 大学院工学系研究科(工学部), 講師 (40750980)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords有機半導体 / 2分子膜 / 薄膜トランジスタ / 単結晶 / 結晶構造 / 自己組織化 / ソフトマター / 2分子膜 / プリンテッドエレクトロニクス / 液晶 / 両親媒性分子 / 結晶化 / 有機トランジスタ
Outline of Final Research Achievements

Some asymmetric rod-like organic molecules developed for printable organic semiconductors have been reported to exhibit high layered crystallinity associated with the formation of bilayer-type layered herringbone packing motifs. The resulting layered crystallinity enables efficient two-dimensional carrier transport allowing to realize high-performance organic thin-film transistors (TFTs). However, these materials usually form thin flake-like crystals composed of multiply-stacked molecular bilayer units. To realize uniform self-organized single molecular bilayers (SMBs) based on rod-shape organic semiconductors, we introduced geometrical frustration to prevent the multiple stacking of molecular bilayers by taking advantage of the controllable nature of substituent alkyl chain lengths. We successfully produced uniform SMBs at a large area applying this method. We also designed a new organic semiconductor based on the strategy of asymmetrical substitution of pi-electron skeletons.

Academic Significance and Societal Importance of the Research Achievements

本研究では、有機半導体層の構築をソフトマター材料の自己組織化制御として捉えることで、半導体層の厚みを分子レベルで制御できる新しい手法を考案した。このような分子制御技術はソフトマター分野だけでなく有機エレクトロニクス分野における新たなツールとして展開できる。さらに、ここで用いた非対称置換という分子設計は、材料科学的にもこれまで十分検討されておらず、今後の物質開拓においても重要な設計指針となる。また、これら有機分子が自己組織的に均質に並ぶ技術を活用することで、電子デバイス製造工程の簡略化や低製造コスト化が見込める。

Report

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

    (25 results)

All 2019 2018 2017 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (17 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results) Book (1 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Semiconductive single molecular bilayers realized using geometrical frustration2018

    • Author(s)
      Shunto Arai, Satoru Inoue, Takamasa Hamai, Reiji Kumai, and Tatsuo Hasegawa
    • Journal Title

      Advanced Materials

      Volume: 印刷中 Issue: 23 Pages: 1707256-1707256

    • DOI

      10.1002/adma.201707256

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of tunneling-based access resistance in layered single-crystalline organic transistors2018

    • Author(s)
      Takamasa Hamai, Shunto Arai, and Tatsuo Hasegawa
    • Journal Title

      Journal of Materials Research

      Volume: 33 Issue: 16 Pages: 2350-2363

    • DOI

      10.1557/jmr.2018.171

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Extended and Modulated Thienothiophenes for Thermally Durable and Solution-Processable Organic Semiconductors2018

    • Author(s)
      S. Inoue, S. Shinamura, Y. Sadamitsu, S. Arai, S. Horiuchi, M. Yoneya, K. Takimiya, and T. Hasegawa
    • Journal Title

      Chemistry of Materials

      Volume: 30 Issue: 15 Pages: 5050-5060

    • DOI

      10.1021/acs.chemmater.8b01339

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Semiconductive Single Molecular Bilayers Realized Using Geometrical Frustration2018

    • Author(s)
      S. Arai, S. Inoue, T. Hamai, R. Kumai, and T. Hasegawa
    • Journal Title

      Advanced Materials

      Volume: 印刷中

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Tunneling and Origin of Large Access Resistance in Layered-Crystal Organic Transistors2017

    • Author(s)
      T. Hamai, S. Arai, H. Minemawari, S. Inoue, R. Kumai, and T. Hasegawa
    • Journal Title

      Physical Review Applied

      Volume: 8 Issue: 5 Pages: 0540111-12

    • DOI

      10.1103/physrevapplied.8.054011

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 層状結晶性有機半導体の結晶-結晶転移とアルキル鎖層秩序の役割2019

    • Author(s)
      荒井俊人, 井上 悟, 東野 寿樹, 田中 睦生, 長谷川 達生
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 層状結晶性有機半導体の固相-固相転移とアルキル鎖秩序化の役割2019

    • Author(s)
      荒井俊人, 井上 悟, 東野 寿樹, 田中 睦生, 長谷川 達生
    • Organizer
      2019年 第66回 応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Semiconductive Single Molecular Bilayers Realized Using Geometrical Frustration2018

    • Author(s)
      Shunto Arai, Satoru Inoue, Reiji Kumai and T. Hasegawa
    • Organizer
      The 8th TOYOTA RIKEN International Workshop on Organic Semiconductors, Conductors and Electronics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Semiconductive single molecular bilayers realized using geometrical frustration2018

    • Author(s)
      Shunto Arai
    • Organizer
      World Congress on Semiconductors, Optoelectronics and Nanostructures
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ソフトマター物理を活用したプリンテッドエレクトロニクスの基盤技術開発2018

    • Author(s)
      荒井俊人
    • Organizer
      第7回 エヌエフ基金 研究開発奨励賞 研究発表会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] ヘリンボーン型層状分子配列におけるグレイン境界と薄膜トランジスタ特性2018

    • Author(s)
      荒井俊人, 井上悟, 熊井 玲児, 長谷川達生
    • Organizer
      2018年 第79回 応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 有機半導体を用いたフラストレート型単層2分子膜の構築2018

    • Author(s)
      荒井俊人, 井上悟, 東野寿樹, 熊井玲児, 長谷川達生
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
  • [Presentation] Single molecular bilayers of organic semiconductor molecules realized using geometrical frustration2018

    • Author(s)
      S. Arai, S. Inoue, T. Hamai, R. Kumai, and T. Hasegawa
    • Organizer
      APS March Meeting 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Vertical tunneling transport and nonlinear access resistance in layered single-crystal organic transistors2018

    • Author(s)
      T. Hamai, S. Arai, H. Minemawari, S. Inoue, and T. Hasegawa
    • Organizer
      APS March Meeting 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 有機半導体単層2分子膜におけるヘリンボーン型分子配列とアルキル鎖層の役割2018

    • Author(s)
      荒井 俊人, 森田 楓, 堤 潤也, 田中 睦生, 長谷川 達生
    • Organizer
      第65回 応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 層数制御したPh-BTBT-C10単結晶薄膜の低温トランジスタ特性2018

    • Author(s)
      浜井 貴将, 荒井 俊人, 峯廻 洋美, 井上 悟, 長谷川 達生
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] Ultrathin Single Bilayer Formation of Layered-Crystalline Organic Semiconductor as Induced by Frustration2017

    • Author(s)
      S. Arai, S. Inoue, T. Hamai, and T. Hasegawa
    • Organizer
      2017 MRS Spring Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Charge Transport in Layered Single-Crystalline Organic Transistors with Controlled Layer-Number Thickness2017

    • Author(s)
      T. Hamai, S. Arai, H. Minemawari, S. Inoue, and T. Hasegawa
    • Organizer
      2017 MRS Spring Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 層間フラストレーションを用いた単層2分子膜の構築と膜内結晶構造2017

    • Author(s)
      荒井俊人, 堤潤也, 井上悟, 熊井玲児, 長谷川達生
    • Organizer
      日本物理学会 2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 層状結晶性有機半導体Ph-BTBT-C10の低温輸送特性2017

    • Author(s)
      浜井 貴将, 荒井 俊人, 峯廻 洋美, 井上 悟, 長谷川 達生
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 有機半導体単層2分子膜におけるヘリンボーン型層内分子配列とアルキル鎖層の役割2017

    • Author(s)
      荒井俊人, 森田楓, 堤潤也, 井上悟, 田中睦生, 熊井玲児, 長谷川達生
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 有機薄膜トランジスタ特性におけるトンネル効果型アクセス抵抗の影響2017

    • Author(s)
      浜井 貴将, 荒井 俊人, 峯廻 洋美, 井上 悟, 長谷川 達生
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Book] 放射光利用の手引き 第4部39. 放射光とプリンテッドエレクトロニクス―塗布型有機TFTの高性能化に向けて―2019

    • Author(s)
      長谷川達生,荒井俊人
    • Total Pages
      344
    • Publisher
      アグネ技術センター
    • ISBN
      9784901496957
    • Related Report
      2018 Annual Research Report
  • [Remarks]

    • URL

      http://hsgw.t.u-tokyo.ac.jp/publications/index.html

    • Related Report
      2018 Annual Research Report
  • [Patent(Industrial Property Rights)] Organic semiconductor composition, organic thin film comprising same, and use thereof2017

    • Inventor(s)
      Shunto Arai
    • Industrial Property Rights Holder
      Shunto Arai
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Acquisition Date
      2019
    • Related Report
      2018 Annual Research Report
    • Overseas

URL: 

Published: 2017-04-28   Modified: 2020-03-30  

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