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Investigation of electrokinetics at liquid/material interface and its application for devices

Research Project

Project/Area Number 21H01755
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 28030:Nanomaterials-related
Research InstitutionTohoku University

Principal Investigator

Okada Takeru  東北大学, 工学研究科, 准教授 (90616385)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2023: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2021: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Keywordsグラフェン / 動電 / 流体 / 発電 / 流動 / エネルギー / 固液界面 / 電気伝導 / 流動界面
Outline of Research at the Start

1兆個規模のセンサーによって様々な情報を収集・活用する将来像が想定されており、生活環境中の物理現象を利用したエネルギーハーベスティングの重要性が広く認識されている。本研究では液体流動と電子材料界面における動電現象に着目し、未だ科学的な理解が進んでいない物理描像全貌を明らかにすることで、発電だけでなく液体流動によって動作する革新的な電子デバイス創成を目的とする。
本研究は、電子材料微細加工・表面改質、及び物性解析に関する知見を活用し、界面の状態を操り・観ることで、流動によって誘起する界面動電現象の核を導き出す独創的な研究である。

Outline of Final Research Achievements

Development of innovative electricity generation system and devices using liquid flow by investigating the physical view of the electrokinetic phenomena at the interface between flowing water and electronic materials. Electrokinetic phenomena are expected to be used not only as a new energy source but also for a variety of applications. The electrokinetic phenomena can be understood by nano and micro fabrication techniques, surface modification, and physical property analysis technologies that enable to manipulate and observe the solid phase, liquid phase, and interface that influence each other.
The correlation between flow state and electrical properties was investigated by electrical and spectroscopic measurements, resulting in the acheivements show the possibility for developing novel devices.

Academic Significance and Societal Importance of the Research Achievements

本研究は科学的理解が進んでいない液体流動と電子材料界面における動電現象のメカニズム解明と応用展開を目的とした。半導体・電子材料の微細加工改質技術を用いて流動状態を制御し、材料の電気伝導特性を計測することに成功した。また流体がトリガーとなる電子材料の電気伝導が流動状態や流体の電解質濃度などによって制御できる可能性を示した。これらの成果は将来的に革新的な電子デバイス創成に期待を持たせるものである。また新たなエネルギー源としての評価にも成功している。本研究で示したこれらの成果は、これまで接点のなかったエレクトロニクス分野と流体力学分野を結ぶ新たな学際領域開拓に貢献する点で意義があるといえる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (24 results)

All 2024 2023 2022 2021 Other

All Journal Article (7 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Formation of ZnWO4/WO3 composite film by RF magnetron sputtering and calcination2024

    • Author(s)
      Kakuta Sho、Okada Takeru
    • Journal Title

      Journal of Vacuum Science & Technology A

      Volume: 42 Issue: 1

    • DOI

      10.1116/6.0003180

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electrochemical catalysis of aluminum diboride thin film fabricated by radio-frequency magnetron sputtering2024

    • Author(s)
      Nashimoto Kazuki、Horiguchi Yoshiko、Kumatani Akichika、Okada Takeru
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 63 Issue: 4 Pages: 04SP24-04SP24

    • DOI

      10.35848/1347-4065/ad2fde

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Single Crystal Formation of Aluminum Diboride and Electrocatalytic Synthesis of Ammonia2023

    • Author(s)
      Kazuki Nashimoto, Yoshiko Horiguchi, Akichika Kumatani, Takeru Okada
    • Journal Title

      International Microprocesses and Nanotechnology Conference

      Volume: 1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A comparative study of the antibacterial properties of copper-based transparent oxides at the solid?liquid interface2022

    • Author(s)
      Okada Takeru、Ohno Kotaro、Kanzaki Makoto、Washio Katsuyoshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: 10 Pages: 108001-108001

    • DOI

      10.35848/1347-4065/ac9169

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparative Study on Formation of Boride Thin Films Deposited by Co-sputtering with Molybdenum2022

    • Author(s)
      Kazuki Nashimoto, Yoshiko Horiguchi, Akichika Kumatani, and Takeru Okada
    • Journal Title

      Proceedings of ICRP-11/GEC2022

      Volume: HW6.00108 Pages: 299-300

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Investigation of optical property of tungsten-doped zinc oxide films deposited by sputtering2022

    • Author(s)
      Sho Kakuta, Takeru Okada, and Katsuyoshi Washio
    • Journal Title

      Proceedings of ICRP-11/GEC2022

      Volume: HW6.00105 Pages: 293-294

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Investigation of Material Properties of Fluorocarbon Films Deposited by Plasma-Enhanced Chemical Vapor Deposition2022

    • Author(s)
      Toru Toru and Takeru Okada
    • Journal Title

      Proceedings of ICRP-11/GEC2022

      Volume: HT4.00078 Pages: 167-168

    • Related Report
      2022 Annual Research Report
  • [Presentation] グラフェンと液体流動の相界面における起電力計測2024

    • Author(s)
      武田 光流、岩本 直也、本田 光裕、種村 眞幸、山下 一郎、小宮 敦樹、岡田 健
    • Organizer
      第71回 応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Evaluation of flow aspects of EMFs at a water-graphene interface and the Seebeck effect2023

    • Author(s)
      岩本 直也、岡田 健、神田 雄貴、小宮 敦樹
    • Organizer
      第23回日本伝熱学会学生発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Output characteristic of flow-induced electricity generation at graphene-water interface2023

    • Author(s)
      Takeru Okada、Hikaru Takeda、Naoya Iwamoto、Koichi Takano、Mitsuhiro Honda、Masaki Tanemura、Ichiro Yamashita、Atsuki Komiya
    • Organizer
      The 65th Fullerenes-Nanotubes-Graphene General Symposium
    • Related Report
      2023 Annual Research Report
  • [Presentation] チタン酸化物の酸化数制御とペロブスカイト太陽電池特性2023

    • Author(s)
      平井 力、岡田 健
    • Organizer
      第84回 応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ニホウ化アルミニウムの結晶成長と窒素還元反応評価2023

    • Author(s)
      梨本 一樹、堀口 佳子、熊谷 明哉、岡田 健
    • Organizer
      第84回 応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 水の流れがつくるグラフェンの電気伝導2022

    • Author(s)
      岡田健
    • Organizer
      第136回黒鉛化合物研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Comparative Study on Formation of Boride Thin Films Deposited by Co-sputtering with Molybdenum2022

    • Author(s)
      Kazuki Nashimoto, Yoshiko Horiguchi, Akichika Kumatani, and Takeru Okada
    • Organizer
      75th Annual Gaseous Electronics Conference / 11th International Conference on Reactive Plasmas
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of optical property of tungsten-doped zinc oxide films deposited by sputtering2022

    • Author(s)
      Sho Kakuta, Takeru Okada, and Katsuyoshi Washio
    • Organizer
      75th Annual Gaseous Electronics Conference / 11th International Conference on Reactive Plasmas
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of Material Properties of Fluorocarbon Films Deposited by Plasma-Enhanced Chemical Vapor Deposition2022

    • Author(s)
      Toru Takeya and Takeru Okada
    • Organizer
      75th Annual Gaseous Electronics Conference / 11th International Conference on Reactive Plasmas
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フルオロカーボン薄膜の結合状態と物性評価2022

    • Author(s)
      竹谷 透、岡田 健
    • Organizer
      2022年 第83回 応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] コスパッタによるモリブデン添加ホウ化物堆積と窒素還元反応2022

    • Author(s)
      梨本 一樹、堀口 佳子、熊谷 明哉、岡田 健
    • Organizer
      2022年 第83回 応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Bonding state selective doping of graphene and its application2021

    • Author(s)
      Takeru Okada
    • Organizer
      Material Research Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Energy harvesting application of water/graphene interface by elecctrokinetic phenomenon2021

    • Author(s)
      Takeru Okada
    • Organizer
      International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS -Processing, Fabrication, Properties, Applications-
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] グラフェン上を流れる水を利用したエネルギー創出2021

    • Author(s)
      岡田健
    • Organizer
      D2TスペシャルセミナーONLINE
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Remarks] 東北大学シーズ集

    • URL

      https://www.rpip.tohoku.ac.jp/seeds/profile/721/search_keyword:%E5%B2%A1%E7%94%B0/lang:jp/?iok=1663238341

    • Related Report
      2022 Annual Research Report
  • [Remarks] 東北大学 産学連携機構 研究者スポットライト Vol. 16

    • URL

      https://www.rpip.tohoku.ac.jp/jp/pr/spotlight/

    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] 発電素子、発電装置2024

    • Inventor(s)
      岡田健、小宮敦樹
    • Industrial Property Rights Holder
      岡田健、小宮敦樹
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2024-026913
    • Filing Date
      2024
    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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