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

Elucidation of charge injection process of self-contact organic transistor using accumulated charge method

Research Project

Project/Area Number 17K18020
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Functional solid state chemistry
Device related chemistry
Research InstitutionUniversity of Hyogo

Principal Investigator

Kadoya Tomofumi  兵庫県立大学, 物質理学研究科, 助教 (70759018)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords有機トランジスタ / 分子性導体 / 有機半導体 / 有機結晶 / 有機伝導体 / 電荷注入 / ドーピング / 電荷注入障壁 / ショットキー接合 / 有機薄膜 / 有機導体 / オーミック接合 / 有機薄膜トランジスタ
Outline of Final Research Achievements

Crystal structure of organic semiconductor Br-BTBT-4 was analyzed and transistor characteristics were evaluated. The BTBT-C4 in the previous study formed a bi-layer type herringbone arrangement, whereas Br-BTBT-C4 formed a conventional herringbone array. It should be noted that the molecular packing in the herringbone was more dense in Br-BTBT-C4 than in BTBT-C4. We have succeeded in developing new molecular conductors (BSBS)2AsF6 and (BSBS)2SbF6 using benzoselenobenzoselenophene (BSBS), a molecule in which sulfur of benzothienobenzothiophene (BTBT) is replaced by selenium. Single crystal structure analysis, electric conductivity and thermoelectric power measurements were performed. These complexes have isomorphic structures with the previously reported (BTBT)2XF6 complexes. The conductivity was 850 S/cm for the AsF6 complex and 650 S/cm for the SbF6 complex. The thermoelectric power was about 15-17 microV/K, and the power factor was 15-24 microW/K2.

Academic Significance and Societal Importance of the Research Achievements

トランジスタ分子を含む分子性導体の物性から、分子軌道計算でしか評価できなかった分子間相互作用の値を実験によって見積もることができる手法を拡大した。関連分野に強いインパクトを与えると考えられる。今後は新たな熱電素子を探索しながら、類縁体の分子のトランスファー積分を見積もる。また、分子性導体の分野で主流であったTTF骨格ではない分子を用いて、二次元電子構造をもつ強相関電子系を開発できたことは非常に稀である。このことは、今回用いた、BEDT-BDT骨格が新しい分子性導体の開発に有望な骨格であることを示しており、熱電性能だけではない、新しい物性開拓が期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (19 results)

All 2020 2019 2018 2017 Other

All Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 6 results) Presentation (10 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (2 results)

  • [Journal Article] Steric effect of halogen substitution in an unsymmetrical benzothienobenzothiophene organic semiconductor2020

    • Author(s)
      Kadoya Tomofumi、Mano Shotaro、Hori Aoi、Tahara Keishiro、Sugimoto Kunihisa、Kubo Kazuya、Abe Masaaki、Tajima Hiroyuki、Yamada Jun-ichi
    • Journal Title

      Organic Electronics

      Volume: 78 Pages: 105570-105570

    • DOI

      10.1016/j.orgel.2019.105570

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Energy Conversion and Storage; Catalysis; Optical, Electronic, and Magnetic Properties and Processes; Interfaces; Nanomaterials and Hybrid Materials2019

    • Author(s)
      Kadoya, Tomofumi; Oki, Ryouji; Kiyota, Yasuhiro; Koyama, Yuta; Higashino, Toshiki; Kubo, Kazuya; Mori, Takehiko; Yamada, Jun-ichi
    • Journal Title

      The Journal of Physical Chemistry

      Volume: 123 Issue: 9 Pages: 5216-5221

    • DOI

      10.1021/acs.jpcc.8b10687

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Accumulated charge measurement using a substrate with a restricted-bottom-electrode structure2019

    • Author(s)
      Tanimura Toshiaki、Tajima Hiroyuki、Ogino Akinari、Miyamoto Yuta、Kadoya Tomofumi、Komino Takeshi、Yokomatsu Tokuji、Maenaka Kazusuke、Ikemoto Yuka
    • Journal Title

      Organic Electronics

      Volume: 74 Pages: 251-257

    • DOI

      10.1016/j.orgel.2019.07.009

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] New pai-extended catecholato complexes of Pt(II) and Pd(II) containing a benzothienobenzothiophene (BTBT) moiety: synthesis, electrochemical behavior and charge transfer properties2019

    • Author(s)
      K. Tahara, Y. Ashihara, T. Higashino, Y. Ozawa, T. Kadoya, K. Sugimoto, A. Ueda, H. Mori and M. Abe
    • Journal Title

      Dalton Transactions

      Volume: 印刷中 Issue: 21 Pages: 7367-7377

    • DOI

      10.1039/c8dt05057k

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 蓄積電荷測定法(ACM)による有機半導体/金属界面の電荷注入障壁測定2018

    • Author(s)
      田島裕之,角屋智史
    • Journal Title

      信学技報

      Volume: 118

    • Related Report
      2018 Research-status Report
  • [Journal Article] Estimation of the Charge Injection Barrier at a Metal/Organic Semiconductor Interface Based on Accumulated Charge Measurement: The Effect of Offset Bias Voltages2017

    • Author(s)
      Tajima Hiroyuki、Yoshida Kesuke、Sato Seiichi、Kadoya Tomofumi、Yamada Jun-ichi
    • Journal Title

      J. Phys. Chem. C

      Volume: 121 Issue: 27 Pages: 14725-14730

    • DOI

      10.1021/acs.jpcc.7b04456

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Estimation of hole injection barrier at the poly-3(hexylthiophene)/metal interface using accumulated charge measurement2017

    • Author(s)
      Tajima Hiroyuki、Yasukawa Naoto、Nakatani Hisaki、Sato Seiichi、Kadoya Tomofumi、Yamada Jun-ichi
    • Journal Title

      Org. Electron

      Volume: 51 Pages: 162-167

    • DOI

      10.1016/j.orgel.2017.09.008

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 非 TTF 系電子ドナーに基づくモット絶縁体(BEDT-BDT)PF62019

    • Author(s)
      角屋智史
    • Organizer
      有機固体若手の会2019冬の学校
    • Related Report
      2019 Annual Research Report
  • [Presentation] 制限背面電極型素子を用いた蓄積電荷測定2019

    • Author(s)
      谷村 利精 ・荻野 晃成 ・宮本 裕太 ・角 屋 智史 ・小簑 剛 ・横松 得滋 ・前中 一介 ・田島 裕之
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2018 Research-status Report
  • [Presentation] トランジスタ分子に基づく有機導体とエレクトロニクスへの展開2018

    • Author(s)
      角屋智史
    • Organizer
      日本化学会中国四国支部愛媛地区講演会、愛媛大学
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Investigation of Transfer Integrals in the Radical-Cationic BTBT-type Semiconductors2018

    • Author(s)
      T. Kadoya, Y. Koyama, R. Oki, Y. Kiyota, T. Higashino, K. Kubo, T. Mori, J. Yamada
    • Organizer
      The 8th TOYOTA RIKEN International Workshop, Organic Semiconductors, Conductors, and Electronics, Aichi, Japan,
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Halogen substitution effects on molecular arrangement and transistor properties of asymmetrical benzothienobenzothiophene derivatives2018

    • Author(s)
      T. Kadoya, S. Mano, K. Tahara, K. Sugimoto, K. Kubo, M. Abe, H. Tajima, J. Yamada
    • Organizer
      International Conference on Coordination Chemistry (ICCC2018), Sendai, Japan,
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] BTBT系分子性導体の開発とトランスファー積分の考察2018

    • Author(s)
      角屋智史
    • Organizer
      有機固体若手の会 2018秋の学校
    • Related Report
      2018 Research-status Report
  • [Presentation] 蓄積電荷測定法による有機/金属界面の電荷注入障壁測定2018

    • Author(s)
      宮本裕太,谷村利精,大塚理人,角屋智史,山田順一, 横松得滋,前中一介,小簑剛,田島裕之
    • Organizer
      第12回分子科学討論会2018福岡
    • Related Report
      2018 Research-status Report
  • [Presentation] 非対称BTBT誘導体を用いた有機薄膜トランジスタ2017

    • Author(s)
      眞埜 将太朗、角屋智史、久保和也、田島裕之、山田順一
    • Organizer
      第11回分子科学討論会 東北大学川内北キャンパス 仙台市青葉区川内41
    • Related Report
      2017 Research-status Report
  • [Presentation] DCNQI骨格に基づくn型有機薄膜トランジスタ2017

    • Author(s)
      高嶋 航平、角屋智史、久保和也、田島裕之、山田順一
    • Organizer
      第11回分子科学討論会 東北大学川内北キャンパス 仙台市青葉区川内41
    • Related Report
      2017 Research-status Report
  • [Presentation] アミノ基を有するBTBT誘導体を用いた電荷移動錯体の構造と物性2017

    • Author(s)
      隠岐 亮志、眞埜 将太朗、角屋智史、久保和也、山田順一
    • Organizer
      第11回分子科学討論会 東北大学川内北キャンパス 仙台市青葉区川内41
    • Related Report
      2017 Research-status Report
  • [Remarks] 兵庫県立大学大学院物質理学研究科機能性物質学Ⅱ

    • URL

      https://www.sci.u-hyogo.ac.jp/material/funct_mat2/index-j.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 兵庫県立大学 物質理学研究科 機能性物質学Ⅱ講座ホームページ

    • URL

      http://www.sci.u-hyogo.ac.jp/material/funct_mat2/index-j.html

    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi