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Shape control of Ag nanocoils and development of electrical and optical applications

Research Project

Project/Area Number 19K04085
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 18010:Mechanics of materials and materials-related
Research InstitutionAkita University

Principal Investigator

ZHAO XU  秋田大学, 理工学研究科, 講師 (20650790)

Co-Investigator(Kenkyū-buntansha) 山口 誠  秋田大学, 理工学研究科, 准教授 (90329863)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsナノコイル / ナノファイバ / 形状制御 / 表面増強ラマン散乱 / 透明ヒーター / 電場増強 / 形状異方性 / プラズマ処理 / ナノ構造体 / 金属ナノコイル
Outline of Research at the Start

本研究は、3年計画により、銀(Ag)ナノコイル形状形成の駆動源である不整合ひずみエネルギーの解放に着目し、その制御によるナノコイルの形状制御の達成を推進する。また、ナノコイルの形状諸元がコイルネットワークの機械・電気・光学特性に及ぼす影響を調査する。さらに、Agナノコイルの形状効果(可撓性と伸縮性)および材質効果(高電気伝導性)を生かして、高伸縮性透明ヒーターおよび表面増強ラマン散乱への応用を図る。

Outline of Final Research Achievements

This research succeeded in controlling the shape of Ag nanocoils based on our previously developed method of fabricating metallic nanocoils. We have solved the problem that shape control is difficult due to the complicated shape of 3D nanostructures and the fabrication process. In addition, by utilizing the shape effect and material effect, we applied Ag nanocoils to highly-flexible transparent heater and a surface-enhanced Raman scattering substrate. The effect of the shape on the mechanical, electrical, and optical properties of Ag nanocoils was clarified. Furthermore, we discovered a unique reduction mechanism for silver chloride and developed a novel method for rapidly fabricating Ag nanofibers with high aspect ratio.

Academic Significance and Societal Importance of the Research Achievements

本研究は、独自開発した金属ナノコイルの創製方法に基づき、「ナノ」と「コイル」創製を両立したうえで、さらにコイルの形状制御をできた。金属ナノコイルの形状制御の基盤技術を確立し、ナノテクノロジーの研究に貢献した。また、銀ナノコイルの高伸縮性透明ヒーターおよび表面増強ラマン散乱基板への応用は、新たな機能性材料の創出および高感度物性分析法の開発に貢献した。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (11 results)

All 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Ag nanofibers with ultrahigh aspect ratios fabricated by catalytic reduction of solution blowspun AgNO3/PVA/PVP-mixed nanofibers2022

    • Author(s)
      Xu Zhao, Chiho Onodera, Mikio Muraoka
    • Journal Title

      International Journal of the Society of Materials Engineering for Resources

      Volume: 25

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rapid Ag nanofiber formation via Pt nanoparticle-assisted H2-free reduction of Ag+-containing polymers2021

    • Author(s)
      Xu Zhao, Yukiko Kawamura, Mikio Muraoka
    • Journal Title

      Nanoscale Research Letters

      Volume: 16 Issue: 1

    • DOI

      10.1186/s11671-021-03549-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anisotropic surface-enhanced Raman scattering in shape-controlled Ag microcoils2021

    • Author(s)
      Xu Zhao, Kensuke Sakuma, Makoto Yamaguchi, Mikio Muraoka
    • Journal Title

      Materials Letters

      Volume: 300 Pages: 130178-130178

    • DOI

      10.1016/j.matlet.2021.130178

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Plasma etching-assisted stress release for fabricating metallic nanocoil networks at low temperatures2020

    • Author(s)
      Xu Zhao, Ryuma Sakuraba, Mikio Muraoka
    • Journal Title

      Nanoscience and Nanotechnology Letters

      Volume: 12 Issue: 1 Pages: 107-112

    • DOI

      10.1166/nnl.2020.3078

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Fabrication and application of metallic micro/nanocoils2021

    • Author(s)
      Xu Zhao
    • Organizer
      The 32nd 2021 International Symposium on Micro-NanoMechatronics and Human Science
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mass fabrication of silver nanofibers with ultrahigh aspect ratios2021

    • Author(s)
      Chiho Onodera, Xu Zhao, Mikio Muraoka
    • Organizer
      The Ninth International Conference on Materials Engineering for Resources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 触媒還元法によるフレキシブル透明導電膜の迅速創製2021

    • Author(s)
      小野寺千穂、趙旭、村岡幹夫
    • Organizer
      日本機械学会2021年度年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Pt触媒粒子を利用した透明導電膜の簡易作製2020

    • Author(s)
      趙旭、川村透子、村岡幹夫
    • Organizer
      日本機械学会2020年度年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 銀ナノコイルによる表面増強ラマン散乱効果の基礎検討2020

    • Author(s)
      佐久間健輔、アハマドシャキル、趙旭、山口誠、村岡幹夫
    • Organizer
      日本機械学会2020年度年次大会
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 銀ナノファイバの製造方法2020

    • Inventor(s)
      趙旭、村岡幹夫
    • Industrial Property Rights Holder
      秋田大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-084337
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 表面増強ラマン散乱の測定方法及び表面増強ラマン散乱ユニット2020

    • Inventor(s)
      趙旭、村岡幹夫、山口誠
    • Industrial Property Rights Holder
      秋田大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-013968
    • Filing Date
      2020
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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