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Systematic understanding on surface processing by anodization of SiC, and its application in structural and electronic materials

Research Project

Project/Area Number 21H01670
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26050:Material processing and microstructure control-related
Research InstitutionKyoto University

Principal Investigator

Fukami Kazuhiro  京都大学, 工学研究科, 准教授 (60452322)

Co-Investigator(Kenkyū-buntansha) 北田 敦  東京大学, 大学院工学系研究科(工学部), 准教授 (30636254)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2022: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2021: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Keywords陽極酸化 / シリコンカーバイド / ダイヤモンド / 電析 / 欠陥 / イオン照射 / SiC / 構造材料 / 電子材料
Outline of Research at the Start

高い熱安定性、機械強度、化学安定性を誇るSiCを加工することは極めて難しい。我々はSiCの格子欠陥生成を定量的に制御することにより電気化学活性を著しく向上させ、陽極酸化により表面の加工が可能になることを見出してきた。本研究では結晶の対称性の破れがもたらすと考えられるSiCの活性化について、格子欠陥生成と格子振動励起を突破口として活性化機構の解明を目指す。SiC酸化反応にH2Oが必須であることに着目し、超高濃度水溶液を使い自由水の濃度制御下における表面微細構造形成に取り組む。陽極酸化により作製したポーラスSiCは電析による複合構造材料、SiC上の良質SiO2薄膜は高性能電子材料として展開する。

Outline of Final Research Achievements

Since silicon carbide and diamond are stable materials, their surface processing is extremely difficult. In this study, we investigated how the formation of point defects generated by high-energy ion irradiation and phonon excitation by mid-infrared free electron laser irradiation affect the anodization of these materials. In the case of silicon carbide, the LO and TO phonon modes exist, and we clarified that the TO mode excitation promotes the anodization of silicon carbide. We also found that a homogeneous SiO2 thin layer was electrochemically formed on the SiC surface by using a concentrated aqueous solution. In addition, we demonstrated that the anodization of a boron-doped diamond was also promoted by the defect formation by high-energy ion irradiation.

Academic Significance and Societal Importance of the Research Achievements

本研究ではシリコンカーバイドやダイヤモンドといった次世代半導体として期待される材料の表面加工法を確立した点が最も意義のある結果といえる。Siの表面加工はSiをベースとしたエレクトロニクスの基盤技術であったが、同様の処理をシリコンカーバイドやダイヤモンドに対して行う方法論は未開拓であった。本研究により、格子欠陥の制御や格子振動励起によってこれら難加工材の電気化学反応活性を向上させられることが明らかとなり、今後、この手法を洗練させることで難加工材の新たな表面処理技術として一般化できるものと期待される。

Report

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

    (31 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 6 results) Presentation (17 results) (of which Int'l Joint Research: 3 results,  Invited: 7 results) Remarks (3 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Int'l Joint Research] Universidad Complutense de Madrid(スペイン)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Structure and complexation mechanism of aqueous Zn(II)-acetate complex studied by XAFS and Raman spectroscopies2024

    • Author(s)
      Alvaro Munoz-Noval, Kazuhiro Fukami, Takuya Kuruma, Shinjiro Hayakawa
    • Journal Title

      Analytical Sciences

      Volume: 未確定 Issue: 6 Pages: 1193-1201

    • DOI

      10.1007/s44211-024-00549-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Electrodeposition of a CoNiCu Medium-Entropy Alloy: Promotion of the Electrodeposition Rate and Composite Deposition with Carbon Nanotubes2023

    • Author(s)
      村上勇樹,邑瀬邦明,深見一弘
    • Journal Title

      Journal of The Surface Finishing Society of Japan

      Volume: 74 Issue: 10 Pages: 529-533

    • DOI

      10.4139/sfj.74.529

    • ISSN
      0915-1869, 1884-3409
    • Year and Date
      2023-10-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nanoporous boron-doped diamond produced by a combination of high-energy ion irradiation and anodization2023

    • Author(s)
      Chenghao Lin, Yuki Maeda, Kuniaki, Murase, Kazuhiro Fukami
    • Journal Title

      Electrochemistry Communications

      Volume: 149 Pages: 107473-107473

    • DOI

      10.1016/j.elecom.2023.107473

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Smooth Thin Film of a CoNiCu Medium-Entropy Alloy Consisting of Single Nanometer-Sized Grains Formed by Electrodeposition in a Water-in-Oil Emulsion2023

    • Author(s)
      Murakami Yuki、Murase Kuniaki、Fukami Kazuhiro
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 127 Issue: 9 Pages: 4696-4703

    • DOI

      10.1021/acs.jpcc.2c08033

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Macroscopically Uniform and Flat Lithium Thin Film Formed by Electrodeposition Using Multicomponent Additives2022

    • Author(s)
      Fukami Kazuhiro, Sakurai Akihiro, Tsujimoto Takamitsu, Yamagami Masaki, Kitada Atsushi, Morimoto Kota, Nishioka Kiho, Nakanishi Shuji, Yoshikane Yusuke, Nagao Toshimitsu, Katayama Jun-ichi, Murase Kuniaki
    • Journal Title

      Electrochemistry Communications

      Volume: 136 Pages: 107238-107238

    • DOI

      10.1016/j.elecom.2022.107238

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhancement of Oxidation of Silicon Carbide Originating from Stacking Faults Formed by Mode-Selective Phonon Excitation Using a Mid-Infrared Free Electron Laser2022

    • Author(s)
      Yuki Maeda, Heishun Zen, Atsushi Kitada, Kuniaki Murase, Kazuhiro Fukami
    • Journal Title

      The Journal of Physical Chemistry Letters

      Volume: 13 Issue: 13 Pages: 2956-2962

    • DOI

      10.1021/acs.jpclett.2c00464

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electrodeposition of a CoNiCu medium-entropy alloy in a water-in-oil emulsion2021

    • Author(s)
      Yuki Murakami, Yuki Maeda, Atsushi Kitada, Kuniaki Murase, Kazuhiro Fukami
    • Journal Title

      Electrochemistry Communications

      Volume: 128 Pages: 107057-107057

    • DOI

      10.1016/j.elecom.2021.107057

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-density and Low-roughness Anodic Oxide Formed on SiC in Highly Concentrated LiCl Aqueous Solution2021

    • Author(s)
      Maeda Yuki, Kitada Atsushi, Murase Kuniaki, Fukami Kazuhiro
    • Journal Title

      Electrochemistry Communications

      Volume: 132 Pages: 107138-107138

    • DOI

      10.1016/j.elecom.2021.107138

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] CnmimCl-H2O浴からのCrCoNiミディアムエントロピー合金電析2024

    • Author(s)
      村上勇樹,石井浩介,西 直哉,邑瀬邦明,深見一弘
    • Organizer
      電気化学会第91回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] グラフェンナノリボンを触媒とするシリコンの気相エッチング2023

    • Author(s)
      多田敦哉,小島崇寛,李澤驍,邑瀬邦明,坂口浩司,深見一弘
    • Organizer
      表面技術協会アノード酸化皮膜の機能化部会(ARS)第38回姫路コンファレンス
    • Related Report
      2023 Annual Research Report
  • [Presentation] Electrodeposition of Medium-Entropy Alloy from C4mimCl-H2O Bath2023

    • Author(s)
      Yuki Murakami, Kuniaki Murase, Kazuhiro Fukami
    • Organizer
      International Conference on Surface Engineering (ICSE2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Porous structure formation on the surface of next-generation semiconductors: Silicon carbide and diamond as examples2023

    • Author(s)
      Kazuhiro Fukami
    • Organizer
      International Conference on Surface Engineering (ICSE2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高硬度・高耐食性を有するCrCoNiミディアムエントロピー合金の電析2023

    • Author(s)
      村上勇樹,石井浩介,西 直哉,邑瀬邦明,深見一弘
    • Organizer
      2023年度第3回関西電気化学研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 材料表面加工のための電気化学:電位の考え方と使い方2023

    • Author(s)
      深見一弘
    • Organizer
      応用物理学会 界面ナノ電子化学研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] C4mimCl-H2O浴からのCrCoNiミディアムエントロピー合金電析2023

    • Author(s)
      村上勇樹,邑瀬邦明,深見一弘
    • Organizer
      表面技術協会第147回講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 格子欠陥に起因する電気化学活性制御によるSiCの陽極酸化2022

    • Author(s)
      深見一弘
    • Organizer
      第37回アノード酸化皮膜の機能化部会(ARS)三河コンファレンス
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] シリコンのアノード酸化の基礎2022

    • Author(s)
      深見一弘
    • Organizer
      アノード酸化皮膜の機能化部会(ARS) 第109回例会「2022年度チュートリアル:アノード酸化の基礎」
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Surface Processing by Electrochemical Reactions Toward Energy Applications2022

    • Author(s)
      Kazuhiro Fukami
    • Organizer
      e-conversion conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 格子欠陥に着目した電気化学活性制御によるSiCの表面加工2022

    • Author(s)
      深見一弘
    • Organizer
      日本金属学会2022秋期講演大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 陽極酸化によるホウ素ドープダイヤモンドのナノポーラス化2022

    • Author(s)
      林成浩,前田有輝,北田敦,邑瀬邦明,深見一弘
    • Organizer
      表面技術協会第146回講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 陽極酸化と電析を駆使した材料表面の微細加工2022

    • Author(s)
      深見一弘
    • Organizer
      令和4年度 第1回表面物性研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] エマルジョンを用いたCoNiCuミディアムエントロピー合金電析:添加剤による平滑化2022

    • Author(s)
      村上勇樹,北田敦,邑瀬邦明,深見一弘
    • Organizer
      表面技術協会第146回講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Water-in-oil型エマルジョンを用いたCoNiCuミディアムエントロピー合金電析2021

    • Author(s)
      村上勇樹,前田有輝,北田敦,邑瀬邦明,深見一弘
    • Organizer
      表面技術協会第144回講演大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] エマルジョンの安定化によるCoNiCuミディアムエントロピー合金の平滑電析2021

    • Author(s)
      村上勇樹,前田有輝,北田敦,邑瀬邦明,深見一弘
    • Organizer
      第23回関西表面技術フォーラム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 赤外自由電子レーザーを用いた格子振動励起とSiC のアノード酸化挙動の関係2021

    • Author(s)
      前田有輝,北田敦,全炳俊,邑瀬邦明,深見一弘
    • Organizer
      表面技術協会第145回講演大会
    • Related Report
      2021 Annual Research Report
  • [Remarks] 深見一弘 研究業績

    • URL

      http://www.echem.mtl.kyoto-u.ac.jp/fukami-list1r.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 深見一弘 研究業績

    • URL

      http://www.echem.mtl.kyoto-u.ac.jp/fukami-list1r.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] 深見一弘 Publication list

    • URL

      http://www.echem.mtl.kyoto-u.ac.jp/fukami-list1r.html

    • Related Report
      2021 Annual Research Report
  • [Patent(Industrial Property Rights)] 多元系合金めっき膜の生成方法2023

    • Inventor(s)
      深見一弘,村上勇樹,邑瀬邦明
    • Industrial Property Rights Holder
      京都大学
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 多元系合金めっき膜の生成方法2023

    • Inventor(s)
      深見一弘,村上勇樹,邑瀬邦明
    • Industrial Property Rights Holder
      京都大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2023-025550
    • Filing Date
      2023
    • Related Report
      2022 Annual Research Report

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

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