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Development of fabrication method of semicontinuous metallic film and application to hydrogen-gas sensor

Research Project

Project/Area Number 18H01883
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 29030:Applied condensed matter physics-related
Research InstitutionOsaka University

Principal Investigator

Nakamura Nobutomo  大阪大学, 基礎工学研究科, 准教授 (50452404)

Co-Investigator(Kenkyū-buntansha) 荻 博次  大阪大学, 工学研究科, 教授 (90252626)
堀川 敬太郎  大阪大学, 基礎工学研究科, 准教授 (50314836)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Keywords半連続膜 / 圧電体 / 抵抗率スペクトロスコピー / 共鳴 / 水素センサ / パラジウム / スパッタリング / ナノ粒子 / 超音波共鳴法 / 抵抗スペクトロスコピー
Outline of Final Research Achievements

In this study, we developed a method for fabricating semicontinuous film on substrate by using resonant vibrations of a piezoelectric material. By using this method, palladium-semicontinuous-film hydrogen-gas sensors were developed. Sensitivity of the sensor was higher than that reported in the previous studies by a factor of 12 at 100 ppm, and a hydrogen gas at 0.25 ppm was detectable.

Academic Significance and Societal Importance of the Research Achievements

半連続膜は島状のクラスタとも連続膜とも異なる特異な電気特性を示すことが知られており、水素センサをはじめとするデバイスへの応用が期待される。しかしながら、半連続膜の作製は困難であり、半連続膜が有している特性を十分に引き出すことができていなかった。本研究では、独自の半連続膜作製技術を確立することで、半連続膜の特異な電気特性を従来より強く引き出し、水素センサの感度向上を達成することに成功した。これらの成果は、水素エネルギーを利用したゼロエミッションの達成や、半連続膜を使ったデバイス開発に貢献すると期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (15 results)

All 2021 2020 2019 2018

All Journal Article (5 results) (of which Peer Reviewed: 2 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] 低濃度水素ガスを検出するためのパラジウムナノ粒子の開発2020

    • Author(s)
      中村暢伴
    • Journal Title

      機能材料

      Volume: 40 Pages: 52-57

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Precise control of hydrogen response of semicontinuous palladium film using piezoelectric resonance method2019

    • Author(s)
      Nakamura N.、Ueno T.、Ogi H.
    • Journal Title

      Applied Physics Letters

      Volume: 114 Issue: 20 Pages: 201901-201901

    • DOI

      10.1063/1.5094917

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrogen-gas sensing at low concentrations using extremely narrow gap palladium nanoclusters prepared by resistive spectroscopy2019

    • Author(s)
      Nakamura N.、Ueno T.、Ogi H.
    • Journal Title

      Journal of Applied Physics

      Volume: 126 Issue: 22 Pages: 225104-225104

    • DOI

      10.1063/1.5119314

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 圧電体共振法を用いた水素検出用パラジウムナノ粒子の開発2019

    • Author(s)
      中村暢伴
    • Journal Title

      クリーンエネルギー

      Volume: 28 Pages: 22-26

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 圧電体の共振を用いた金属ナノ薄膜の形態評価法=音で電気伝導性を測る=2018

    • Author(s)
      中村暢伴
    • Journal Title

      超音波TECHNO

      Volume: 30 Pages: 82-85

    • Related Report
      2018 Annual Research Report
  • [Presentation] 圧電体共振法を用いた磁性ナノ粒子の作製と電気特性評価2021

    • Author(s)
      山本菖子、中村暢伴、垂水竜一
    • Organizer
      日本機械学会 関西学生会2020年度学生員卒業研究発表講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 音を使った半連続ナノ薄膜の作製と水素センサへの応用2020

    • Author(s)
      中村暢伴
    • Organizer
      第103回大阪大学工業会機械工学系技術交流会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 加熱された基板上での薄膜形成過程の抵抗スペクトロスコピーによる観察2020

    • Author(s)
      樫内健人,中村暢伴,垂水竜一,荻博次
    • Organizer
      2020年度日本機械学会年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 合金薄膜成膜時の形態変化観察手法の開発2020

    • Author(s)
      松浦弘治,樫内健人,中村暢伴,垂水竜一,荻博次
    • Organizer
      日本機械学会 関西学生会2019年度学生員卒業研究発表講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Conductivity Response of Palladium Semicontinuous Film Deposited Using Piezoelectric Resonance Method to Hydrogen2019

    • Author(s)
      N. Nakamura, T. Ueno, and H. Ogi
    • Organizer
      The 2019 IEEE International Ultrasonics Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 非接触圧電体共振法によるシリコン基板上への半連続膜の成膜2019

    • Author(s)
      中村暢伴,上野友也、橋里駿、荻博次
    • Organizer
      日本機械学会 2019年度年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 非接触圧電体共振法による石英ガラス上に成膜される金属膜の形態変化の観察2018

    • Author(s)
      上野友也,中村暢伴,荻博次
    • Organizer
      2018年度日本機械学会年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Deposition of Pd semicontinuous films using resistive spectroscopy for hydrogen sensor2018

    • Author(s)
      Nobutomo Nakamura, Sosuke Iwaki, Keitaro Horikawa, and Hirotsugu Ogi
    • Organizer
      2018 IEEE International Ultrasonics Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Morphology Change of Ultrathin Films Studied by Noncontact Piezoelectric Resonance Method2018

    • Author(s)
      Tomoya Ueno, Nobutomo Nakamura, Hirotsugu Ogi, and Ryuichi Tarumi
    • Organizer
      2018 IEEE International Ultrasonics Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Discovery of avoided crossing of mechanical resonances during temperature change in piezoelectric materials2018

    • Author(s)
      Masaya Nakamura, Kanta Adachi, Hirotsugu Ogi
    • Organizer
      The 39th Symposium on Ultrasonic Electronics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2022-01-27  

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