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Development of multi-scale phase-shifting optical system and its application to measurement of dynamic wetting of nanofluids

Research Project

Project/Area Number 17K14848
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Properties in chemical engineering process/Transfer operation/Unit operation
Research InstitutionTohoku University

Principal Investigator

Shoji Eita  東北大学, 工学研究科, 助教 (20780430)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsエリプソメータ / 位相シフト技術 / ナノフルイド / ナノ液膜 / 可視化 / 濡れ性 / 化学工学 / 熱工学
Outline of Final Research Achievements

Nanofluids are suspensions of nanoparticles and recently have attracted attention because the nanofluids are expected as nano-ink for printed electronics technique. In the printing process, the dynamic behavior of microscopic wetting near the contact line is important. Therefore, we developed a multi-scale phase-shifting optical system, which allows us to measure the two-dimensional thickness distribution of thin films, to elucidate microscopic wetting behaviors of nanofluids in this study. Measurement of the microscopic wetting behavior using the optical system when the nanofluid droplets move on the silicon substrate was performed. The measurement results revealed that the effects of adding nanoparticles on the characteristics of microscopic wetting behavior, such as contact angle less than 1° and precursor film length.

Academic Significance and Societal Importance of the Research Achievements

ナノフルイドは,プリンテッドエレクトロニクス用ナノインクなどへの応用が期待される新たな機能性流体材料である.ナノフルイドをナノインクとして使用する印刷プロセスにおいて,作製するパターン形状などの高精度化にはナノフルイドの微視的な濡れ性の動的挙動の解明は不可避の課題である.本研究は,ナノフルイドの微視的濡れ挙動に及ぼす各種因子の影響を実験的に明らかにするものである.

Report

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

    (10 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (9 results) (of which Invited: 1 results)

  • [Journal Article] Three-step phase-shifting imaging ellipsometry to measure nanofilm thickness profiles2019

    • Author(s)
      Eita Shoji, Atsuki Komiya, Junnosuke Okajima, Masaki Kubo, Takao Tsukada
    • Journal Title

      Optics and Lasers in Engineering

      Volume: 112 Pages: 145-150

    • DOI

      10.1016/j.optlaseng.2018.09.005

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed
  • [Presentation] A study on nano-scale interfacial phenomena of surface-modified nanoparticle suspensions2019

    • Author(s)
      Eita Shoji, Masaki Kubo, Takao Tsukada, Atsuki Komiya, Gota Kikugawa
    • Organizer
      16th International Conference on Flow Dynamics
    • Related Report
      2019 Annual Research Report
  • [Presentation] 位相シフトエリプソメータを用いた固体基板上における懸濁液の微視的濡れ挙動の計測2019

    • Author(s)
      庄司衛太,米村建哉,金子峻大,久保正樹,塚田隆夫,小宮敦樹
    • Organizer
      日本マイクログラビティ応用学会 第31回学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Investigation of the effect of nanoparticles on microscopic wetting behavior of a nanoparticle suspension droplet on a substrate using phase-shifting ellipsometer2019

    • Author(s)
      Eita Shoji, Tatsuya Yonemura, Takahiro Kaneko, Masaki Kubo, Takao Tsukada, Atsuki Komiya
    • Organizer
      18th Asian Pacific Confederation of Chemical Engineering Congress
    • Related Report
      2019 Annual Research Report
  • [Presentation] Investigation of microscopic wetting behavior of PDMS suspensions with surface-modified nanoparticles using a phase-shifting ellipsometer2019

    • Author(s)
      Takahiro Kaneko, Tatsuya Yonemura, Eita Shoji, Masaki Kubo, Takao Tsukada, Atsuki Komiya
    • Organizer
      2019年度化学系学協会東北大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 位相シフト技術を導入した新規光学計測手法の開発 -熱物質輸送現象のマルチスケール計測-2019

    • Author(s)
      庄司衛太
    • Organizer
      第21回先端研究発表会・講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 位相シフトエリプソメータによる固体基板上液滴のナノスケール濡れ挙動の可視化計測2019

    • Author(s)
      庄司衛太, 米村建哉, 金子峻大, 久保正樹, 塚田隆夫, 小宮敦樹
    • Organizer
      化学工学会第84年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 位相シフトエリプソメータによる固体基板上液滴のナノスケール濡れ挙動の可視化計測2019

    • Author(s)
      庄司衛太、米村建哉、金子峻大、久保正樹、塚田隆夫、小宮敦樹
    • Organizer
      化学工学会第84年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 位相シフトエリプソメータ開発とナノ薄膜の膜厚分布の可視化計測2018

    • Author(s)
      庄司衛太、米村建哉、小宮敦樹、久保正樹、塚田隆夫
    • Organizer
      化学工学会第83年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 位相シフトエリプソメトリによる液滴コンタクトライン近傍のミクロスコピック計測2017

    • Author(s)
      米村建哉、庄司衛太、小宮敦樹、久保正樹、塚田隆夫
    • Organizer
      第19回先端研究発表会
    • Related Report
      2017 Research-status Report

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

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