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Diode-rectified AC arc source for diatomite-derived porous silicon formation

Research Project

Project/Area Number 22K03587
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 14030:Applied plasma science-related
Research InstitutionKyushu University

Principal Investigator

Tanaka Manabu  九州大学, 工学研究院, 准教授 (10707152)

Co-Investigator(Kenkyū-buntansha) 渡辺 隆行  九州大学, 工学研究院, 教授 (40191770)
茂田 正哉  東北大学, 工学研究科, 教授 (30431521)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords熱プラズマ / 一次元アーク反応場 / 多電極交流放電 / シリコン還元 / 循環型社会 / プレーナージェット / ポーラスシリコン / 変動 / アーク放電 / 多電極 / 交流アーク / 珪藻土 / ダイオード整流 / ポーラスSi
Outline of Research at the Start

ダイオード整流多電極アーク源を用いた平板状(プレーナー)熱プラズマ流を発生・制御し,還元性ラジカルを高速照射することで,珪藻土由来のポーラスSiの大量合成手法確立を目指す.周波数変調交流を基としたダイオード整流多電極アーク源を開発し,プレーナー熱プラズマ流を生成・制御することで,再結合による活性ラジカルの不活化を抑制し,低温基板への超高速ラジカル照射を達成する.変調周波数に対応可能な高速度可視化システムを用いた(i)プラズマ物理量(温度,ラジカル濃度)の精密計測.(ii)流れ場の可視化に加えて,(iii)数値流体解析を併用することで,新規なプラズマ流の理解・制御を行なう.

Outline of Final Research Achievements

In this study, we elucidated the spatiotemporal variability of thermal plasma as a high-temperature viscous fluid exceeding 10,000 K and successfully developed a one-dimensional thermal plasma reaction field using a linear multiphase AC arc under a multi-electrode AC discharge configuration. Unlike conventional zero-dimensional point heat sources, this reaction field possesses a novel dimensionality. Utilizing this field, we evaluated the reductive properties of silicon-based oxides and applied it to the removal of organic surface contaminants from silicon substrates, achieving high processing rates. These outcomes hold significant promise for applications contributing to the realization of a sustainable, circular society.

Academic Significance and Societal Importance of the Research Achievements

本研究は、従来のピンチ効果によりゼロ次元的に収束する熱プラズマの限界を超え、一次元的かつ広がりのある反応場を創出した点で学術的に革新的である。さらに、プラズマ場の時空間構造を可視化し、反応場制御への定量的知見を提供したことも重要である。応用面では、シリコン材料の高効率処理技術としての可能性を示し、環境調和型プロセスや資源循環技術への展開に道を拓くものであり、カーボンニュートラル社会実現への貢献が期待される。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (13 results)

All 2024 2023 2022 Other

All Presentation (11 results) (of which Int'l Joint Research: 8 results,  Invited: 6 results) Remarks (2 results)

  • [Presentation] Thermal Plasma Processing for Material Synthesis and Environmental Applications2024

    • Author(s)
      Manabu Tanaka, Takayuki Watanabe
    • Organizer
      The 5th Global Congress on Microwave Energy Applications 2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Visualization of Thermal Plasma Fluctuation for Material Processing2024

    • Author(s)
      Manabu Tanaka, Takayuki Watanabe
    • Organizer
      The 1st Asian Symposium for Building future of Plasma
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent Developments of Thermal Plasma Generation and Its Applications2024

    • Author(s)
      Manabu Tanaka, Takayuki Watanabe
    • Organizer
      Interdisciplinary Exchange Workshop for Future of Thailand and Japan
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nanoparticle Formation Mechanism of Li-Mn Composite Oxides by Mutiphase AC Arc2023

    • Author(s)
      Manabu Tanaka, Aika Tamae, Aori Ichini, Takayuki Watanabe, Takafumi Okuma, Hisao Nagai, Taiki Maruyama
    • Organizer
      25th International Symposium on Plasma Chemistry
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Characteristics of Planar Thermal Plasma Jet by Diode-Rectified AC Arc2023

    • Author(s)
      Ryo Takenaka, Yuta Sogo, Manabu Tanaka, Takayuki Watanabe, Masaya Shigeta, Tsuguo Matsuura
    • Organizer
      25th International Symposium on Plasma Chemistry
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fluctuation Analysis of Diode-Rectified AC Arc by High-Speed Visualization2023

    • Author(s)
      Yuta Sogo, Ryo Takenaka, Manabu Tanaka, Takayuki Watanabe, Masaya Shigeta, Tsuguo Matsuura
    • Organizer
      25th International Symposium on Plasma Chemistry
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of Thermal Plasma Sourves with Diode-Rectification and Their Applications to Nanomaterial Fabrication2023

    • Author(s)
      Manabu Tanaka, Ryo Takenaka, Takafumi Okuma, Takayuki Watanabe
    • Organizer
      24th Symposium on Application of Plasma Processes
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 熱プラズマ診断に基づく革新的熱プラズマ発生とその応用2023

    • Author(s)
      田中学,渡辺隆行
    • Organizer
      プラズマエレクトロニクス分科会第40回プラズマ新領域研究会
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] Innovative Thermal Plasma Generation with Diode-Rectified AC Arc System and Its Applications2022

    • Author(s)
      Manabu Tanaka, Ryo Takenaka, Yuta Sogo, Aika Tamae, Takafumi Okuma, Takayuki Watanabe, Tsugio Matsuura, Juan-Pablo Trelles, Masaya Shigeta
    • Organizer
      5th Asia-Pacific Conference on Plasma Physics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ダイオード整流型交流アークにおけるプレーナー熱プラズマジェットの特性評価2022

    • Author(s)
      竹中凌, 田中学, 渡辺隆行
    • Organizer
      プラズマ・核融合学会九州・沖縄・山口支部第26回支部大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 高速度カメラを用いたダイオード整流型交流放電におけるアーク挙動の解析2022

    • Author(s)
      十河優太, 竹中凌, 田中学, 渡辺隆行, 茂田正哉, 松浦次雄
    • Organizer
      プラズマ・核融合学会九州・沖縄・山口支部第26回支部大会
    • Related Report
      2022 Research-status Report
  • [Remarks] 研究者情報

    • URL

      https://hyoka.ofc.kyushu-u.ac.jp/html/100020099_ja.html

    • Related Report
      2024 Annual Research Report
  • [Remarks] 研究室の研究業績

    • URL

      https://www.chem-eng.kyushu-u.ac.jp/lab5/Pages/result.html

    • Related Report
      2023 Research-status Report

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Published: 2022-04-19   Modified: 2026-01-16  

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