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Oxide semiconductor film growth by combined pulsed laser deposition

Research Project

Project/Area Number 21K03523
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 InstitutionOsaka University

Principal Investigator

IBANO KENZO  大阪大学, 大学院工学研究科, 助教 (80647470)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsプラズマプロセス / 酸化物半導体 / パルスレーザー / 薄膜 / レーザー / プラズマ / 複合プロセス
Outline of Research at the Start

先端デバイスに利用される酸化物半導体(OS)薄膜の成膜法として、高速で高密度成膜が可能なパルスレーザー蒸着法(PLD)が注目されている。本研究では、PLDの課題である膜の非均一性を、背景プラズマを用いた複合プロセスで解決する。背景プラズマ導入により、PLD堆積粒子の運動量を制御し、化学的に活性化できる。複合PLDにおける物理過程を解明し、反応性成膜、ナノ構造直接成膜によるOS薄膜の高品質化、多様化に貢献する。複合プロセスの複雑なパラメータは機械学習により探求し、最適条件を解明する。機能性OS薄膜の高性能化を実現し、革新的新材料創製への波及が期待される研究である。

Outline of Final Research Achievements

Using ECR plasma as a background, the transport and deposition of tungsten particles during ablation in composite PLD were confirmed. Additionally, the use of oxygen plasma led to the formation of tungsten oxide thin films, demonstrating that deposition with chemical reactions is possible. A composite PLD system with a magnetron plasma source was also established, successfully fabricating LiCoO3 thin films and demonstrating the effect of oxygen plasma in reducing oxygen vacancies.

Academic Significance and Societal Importance of the Research Achievements

本研究は、PLDプロセスにおいて背景プラズマを用いた場合の影響を明確にし、酸化物薄膜の組成制御が可能であることを実証した。これにより、酸化物半導体など高機能材料の開発に対する新たなアプローチが提供された。特に、高性能リチウムイオン電池の電極材料開発において、本技術は重要な貢献を果たす可能性がある。

Report

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

    (7 results)

All 2022 Other

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

  • [Int'l Joint Research] Aix-Marseillie University(フランス)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Growth of fiberform nanostructures on metal surfaces by helium plasma irradiation2022

    • Author(s)
      Shin Kajita , Atsushi M. Ito , Kenzo Ibano
    • Journal Title

      JOURNAL OF APPLIED PHYSICS

      Volume: 132 Issue: 18 Pages: 181101-181101

    • DOI

      10.1063/5.0123430

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 複合パルスレーザー蒸着法による酸化物半導体成膜2022

    • Author(s)
      伊庭野 健造, 住吉 宥哉, 平松 厚之, 彦田 颯人, 伊藤 遥輝, リ ハンテ, 上田 良夫
    • Organizer
      プラズマ・核融合学会第39回年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Fibrous nanostructures formation using helium plasma and their applications as functional materials2022

    • Author(s)
      Ibano, Kenzo
    • Organizer
      2022 Gaseous Electronics Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Fabrication and Performance Evaluation of Lithium Cobalt Oxide (LiCoO2) Thin-Film Electrodes by PE-PLD Method2022

    • Author(s)
      Yuya Sumiyoshi,Kenzo Ibano,Yuki Yamada,Yasuyuki Kondo,Heun Lee,Yoshio Ueda
    • Organizer
      2022 MRS Fall Meeting & Exhibit
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Gas Sensing Properties of Tungsten Oxide with Helium-Induced Nanostructure2022

    • Author(s)
      Hayato Hikota,Kenzo Ibano,Heun Lee,Yoshio Ueda
    • Organizer
      2022 MRS Fall Meeting & Exhibit
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Three-Dimensional Si/C Composite Thin Films with Helium-Induced Nanostructures for Use as Anode Materials for Next-Generation LIBs2022

    • Author(s)
      Atsushi Hiramatsu,Kenzo Ibano,Heun Lee,Yoshio Ueda
    • Organizer
      2022 MRS Fall Meeting & Exhibit
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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

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