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Electron transportation at the carbon nanotube interface -toward ubiquitous gas sensor-

Research Project

Project/Area Number 18K18826
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 19:Fluid engineering, thermal engineering, and related fields
Research InstitutionHiroshima University

Principal Investigator

Inoue Shuhei  広島大学, 工学研究科, 准教授 (60379899)

Co-Investigator(Kenkyū-buntansha) 千足 昇平  東京大学, 大学院工学系研究科(工学部), 准教授 (50434022)
井ノ上 泰輝  東京大学, 大学院工学系研究科(工学部), 助教 (00748949)
Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywords界面 / マイクロナノ / ガスセンサー / センサー / カーボンナノチューブ / 吸着
Outline of Final Research Achievements

It was experimentally confirmed that the electrical conductivity of the thin film is changed by the adsorption of molecules on the CNT-CNT interface coated on the substrate, which affects the dielectric constant in the vicinity. We observed how the thickness of the thin film affects. Initially, the CNT network had large voids, and it was thought that the thickness had almost no effect on the molecular scale, but when the thickness was changed, a decrease in sensitivity was observed. We succeeded in obtaining the effective penetration depth of adsorbed molecules by observing the effect by finely changing the thickness of the membrane.

Academic Significance and Societal Importance of the Research Achievements

現在主流のガスセンサーは消費電力が大きく、電源から独立して使用することができない。カーボンナノチューブを利用した超低電力ガスセンサーを実現するためにガス分子吸着による応答メカニズムを解明することを目的とし、成果を得た。このセンサーは吸着ガスの物理特性が影響するため分子種の特定まで将来的に期待できる。ナノスケール界面での電子輸送を明らかにすることはエレクトロニクスや生体医工学の分野への波及・貢献において期待できる。

Report

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

    (16 results)

All 2020 2019 2018

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (11 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] Light and flexible gas sensors made of free-standing carbon nanotube paper2020

    • Author(s)
      Zhang Mengli、Inoue Shuhei、Matsumura Yukihiko
    • Journal Title

      Chemical Physics Letters

      Volume: 747 Pages: 137367-137367

    • DOI

      10.1016/j.cplett.2020.137367

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of thickness of carbon nanotube films on enhancement of sensor response2019

    • Author(s)
      Inoue Shuhei、Tomita Yoshihiro、Matsumura Yukihiko
    • Journal Title

      Chemical Physics Letters

      Volume: 734 Pages: 136730-136730

    • DOI

      10.1016/j.cplett.2019.136730

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of single-walled carbon nanotubes by alcohol chemical vapor deposition with water vapor addition: Narrowing the diameter and chiral angle distributions2019

    • Author(s)
      H. Takezaki, T. Inoue, R. Xiang, S. Chiashi, S. Maruyama
    • Journal Title

      Diamond and Related Materials

      Volume: 96 Pages: 160-166

    • DOI

      10.1016/j.diamond.2019.05.009

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Regrowth and catalytic etching of individual single-walled carbon nanotubes studied by isotope labeling and growth interruption2019

    • Author(s)
      B. Koyano, T. Inoue, S. Yamamoto, K. Otsuka, R.Xiang, S. Chiashi, S. Maruyama
    • Journal Title

      Carbon

      Volume: 155 Pages: 635-642

    • DOI

      10.1016/j.carbon.2019.09.031

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Principles of detection mechanism for adsorbed gases using carbon nanotube nanomat2018

    • Author(s)
      Inoue, Shuhei; Yoshihiro, Tomita; Takuya, Kokabu, Matsumura, Yukihiko
    • Journal Title

      Chemical Physics Letters

      Volume: 709 Pages: 77-81

    • DOI

      10.1016/j.cplett.2018.08.040

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Growth process of individual single-walled carbon nanotubes analyzed by isotope labelling2019

    • Author(s)
      Taiki Inoue, Bunsho Koyano, Shun Yamamoto, Shota Hiraoka, Keigo Otsuka, Rong Xiang, Shohei Chiashi, Shigeo Maruyama
    • Organizer
      20th International Conference on the Science and Application of Nanotubes and Low-dimensional Materials (NT19)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 同位体ラベルによる単層カーボンナノチューブの再成長の分析2019

    • Author(s)
      小矢野 文章, 山元 隼, 大塚 慶吾, 井ノ上 泰輝, 項 栄, 千足 昇平, 丸山 茂夫
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Molecular Physisorption on Carbon Nanotube Film2019

    • Author(s)
      Shuhei INOUE, Mengli Zhang Yoshihiro TOMITA, Yukihiko MATSUMURA
    • Organizer
      Advanced Nano and Energy Materials, ANEM2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] パラジウムとカーボンナノチューブ複合材による水素ガスセンサーの開発2019

    • Author(s)
      Zou Muxuan,井上修平,松村幸彦
    • Organizer
      マイクロナノ工学シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effect of film thickness on responsivity of carbon nanotube sensor2019

    • Author(s)
      Shuhei INOUE、Yoshihiro TOMITA、Yukihiko MATSUMURA
    • Organizer
      International Conference on Diamond and Carbon Materials, ICDCM2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Characteristics of Multi-walled Carbon Nanotubes Based Gas Sensors2019

    • Author(s)
      M.L. Zhang, S. Inoue, Y. Matsumura
    • Organizer
      International Conference on Diamond and Carbon Materials, ICDCM2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enhancing sensitivity of multi-walled carbon nanotube sensors for gas detection2019

    • Author(s)
      Mengli ZHANG S. Inoue, Y. Matsumura
    • Organizer
      THE 3RD INTERNATIONAL SYMPOSIUM ON FUELS AND ENERGY (ISFE2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] カーボンナノチューブ薄膜ガスセンサーの応答に対する膜厚の影響2019

    • Author(s)
      富田 圭裕, 井上 修平, 松村 幸彦
    • Organizer
      第56回日本伝熱シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] カーボンナノチューブ薄膜のガス分子に対する応答特性2018

    • Author(s)
      富田 圭裕  井上 修平 松村 幸彦
    • Organizer
      第55回日本伝熱シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] Development of high response carbon nanotube gas sensor2018

    • Author(s)
      Yoshihiro Tomita Shuhei Inoue Yukihiko Matsumura
    • Organizer
      International Conference on Diamond and Carbon Materials
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication of uniform multi-walled carbon nanotube film as a sensing material2018

    • Author(s)
      Shuhei INOUE, Mengli ZHANG, Yukihiko MATSUMURA
    • Organizer
      International Conference on Diamond and Carbon Materials
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-07-25   Modified: 2021-02-19  

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