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Design of ferroelectric domain structure for independent control of piezoelectricity and electricity

Research Project

Project/Area Number 21H01616
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26020:Inorganic materials and properties-related
Research InstitutionKumamoto University (2022-2023)
Tokyo Institute of Technology (2021)

Principal Investigator

Shiraishi Takahisa  熊本大学, 先進マグネシウム国際研究センター, 准教授 (50758399)

Co-Investigator(Kenkyū-buntansha) 木口 賢紀  熊本大学, 先進マグネシウム国際研究センター, 教授 (70311660)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2022: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2021: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywords強誘電体薄膜 / 低温合成 / ドメイン構造 / 振動発電 / 鉛系強誘電体 / 低温成膜 / トレードオフ / 圧電特性 / 誘電特性 / その場測定 / (K,Na)NbO3基膜 / 組成拡張 / 圧電性 / 誘電性 / マルチスケール解析
Outline of Research at the Start

本研究では、e31とεrの独立制御法を確立し、センサやハーベスタとしての性能を表す指数(FOM)が飛躍的に向上した強誘電体を創出することを目的とする。そのために、水熱製膜内のドメイン構造をマルチスケール解析により解明し、e31とεrへのドメインの寄与を“温度と電界を用いたその場測定”により理解することで、『なぜe31とεrの関係は破れたのか』という学術的問いへの学理を究明する。また、学理が他の強誘電体に応用可能であるかを検討することで、普遍的な材料設計指針を提案する。

Outline of Final Research Achievements

Purpose of this study is to establish the material design guidelines to achieve both high piezoelectric and low dielectric constants in order to develop the high-performance vibration energy harvesters. As a result, it was found that achieving a self-polarized state is essential. In addition, we proposed that the hydrothermal method, which is a low-temperature film formation technology that does not cause phase transition during the cooling process, is one of the effective methods to achieve a unique polarization state. Furthermore, by adapting the method to several typical ferroelectric materials, we demonstrated the validity of our findings.

Academic Significance and Societal Importance of the Research Achievements

強誘電体を用いた振動発電用薄膜材料の開発において、圧電定数と誘電率のトレードオフ関係を打開することが困難とされてきた。本研究では、未解決課題に対する有効な材料設計指針を提案した点で学術的意義がある。また、振動発電はバッテリーフリーなデバイスの実現に有効であるとされており、高性能な発電デバイスの実現に資する点で社会的意義は大きい。

Report

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

    (12 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Orientation-Controlled 400 nm Thick Ferroelectric PbTiO3 Films with Low Strain Directly Grown below the Curie Temperature by the Hydrothermal Method2024

    • Author(s)
      Hu Yuxian、Kubota Rurika、Okamoto Kazuki、Shiraishi Takahisa、Funakubo Hiroshi
    • Journal Title

      Crystal Growth & Design

      Volume: 24 Issue: 3 Pages: 1389-1399

    • DOI

      10.1021/acs.cgd.3c01367

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Introduction of strain-relaxed 90° domain structure by lattice mismatch in tetragonal ferroelectric (Bi,K)TiO3 epitaxial films grown hydrothermally below Curie temperature2023

    • Author(s)
      Kubota Rurika、Hu Yuxian、Shiraishi Takahisa、Tateyama Akinori、Ito Yoshiharu、Kurosawa Minoru、Funakubo Hiroshi
    • Journal Title

      Journal of Applied Physics

      Volume: 134 Issue: 23 Pages: 1-16

    • DOI

      10.1063/5.0176337

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous high-frequency measurement of direct and inverse transverse piezoelectric coefficients of thin films using longitudinal vibration2023

    • Author(s)
      Tateyama Akinori、Orino Yuichiro、Ito Yoshiharu、Shiraishi Takahisa、Shimizu Takao、Kurosawa Minoru Kuribayashi、Funakubo Hiroshi
    • Journal Title

      Sensors and Actuators A: Physical

      Volume: 354 Pages: 114265-114265

    • DOI

      10.1016/j.sna.2023.114265

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of film thickness on piezoelectric vibrator using hydrothermally synthesized epitaxial (K0.88Na0.12)NbO3 film2022

    • Author(s)
      Tateyama Akinori、Ito Yoshiharu、Shiraishi Takahisa、Kurosawa Minoru、Ishikawa Mutsuo、Funakubo Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: SN Pages: SN1016-SN1016

    • DOI

      10.35848/1347-4065/ac8046

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Process window for growth of polar-axis-oriented tetragonal (Bi, K)TiO3 epitaxial films on (100)cSrRuO3//(100)SrTiO3 substrates by the hydrothermal method2022

    • Author(s)
      Kubota Rurika、Tateyama Akinori、Ito Yoshiharu、Yuxian Hu、Shiraishi Takahisa、Kurosawa Minoru、Funakubo Hiroshi
    • Journal Title

      Journal of Materials Science

      Volume: 57 Issue: 29 Pages: 14003-14014

    • DOI

      10.1007/s10853-022-07484-2

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Film thickness dependence of ferroelectric properties in polar-axis-oriented epitaxial tetragonal (Bi,K)TiO3 films prepared by hydrothermal method2022

    • Author(s)
      Kubota Rurika、Tateyama Akinori、Shiraishi Takahisa、Ito Yoshiharu、Kurosawa Minoru、Funakubo Hiroshi
    • Journal Title

      AIP Advances

      Volume: 12 Issue: 3 Pages: 035241-035241

    • DOI

      10.1063/5.0084170

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermal stability of self-polarization in a (K,Na)NbO<sub>3</sub> film prepared by the hydrothermal method2021

    • Author(s)
      Tateyama Akinori、Ito Yoshiharu、Shiraishi Takahisa、Orino Yuichiro、Kurosawa Minoru、Funakubo Hiroshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 60 Issue: SF Pages: SFFB03-SFFB03

    • DOI

      10.35848/1347-4065/ac10f8

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 水熱法による強誘電体PbTiO3エピタキシャル膜の合成とそのドメイン構造評価2023

    • Author(s)
      胡 雨弦、窪田 るりか 、岡本 一輝 、白石 貴久、舟窪 浩
    • Organizer
      第43回電子材料研究討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 水熱法を用いてキュリー温度以下で(001), (110), および(111)SrTiO3 基板上合成し たエピタキシャル(Bi,K)TiO3 薄膜のドメイン構造2021

    • Author(s)
      窪田るりか, 舘山明紀, 伊東良晴, 白石貴久, 黒澤実, 舟窪浩
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Crystal structures, microstructures, and electrical properties of hydrothermally-deposited (K,Na,Li)(Nb,Ta)O3 epitaxial films2021

    • Author(s)
      Takahisa. Shiraishi, Hiroshi Funakubo
    • Organizer
      The 12th International Conferenceon the Science and Technology for Advanced Ceramics (STAC-12)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 水熱合成法で作製した(K,Na)NbO3膜 の 圧電特性における方位依存性2021

    • Author(s)
      舘山 明紀, 伊東 良晴, 白石 貴久, 折野 裕一郎, 黒澤 実, 舟窪 浩
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 水熱合成法で作製した(K,Na)NbO3厚膜の 振動 特性及び 発電 特性 の膜厚依存性2021

    • Author(s)
      舘山 明紀, 伊東 良晴, 白石 貴久, 折野 裕一郎, 黒澤 実, 舟窪 浩
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report

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

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