• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Observation of dynamic behavior of antiferroelectric NaNbO3-based film using in-situ technique

Research Project

Project/Area Number 19K15032
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionRyukoku University

Principal Investigator

Beppu Kosuke  龍谷大学, 先端理工学部, 助教 (20824882)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords反強誘電体 / NaNbO3 / 薄膜 / エネルギー貯蔵 / 非鉛反強誘電体 / PLD法 / パルスレーザー蒸着法 / 反強誘電薄膜 / ドメイン構造
Outline of Research at the Start

本研究では結晶配向性の異なるNaNbO3系非鉛型反強誘電薄膜を作製し,結晶構造・電気特性評価を行う.具体的には
(1)非鉛型反強誘電薄膜のドメイン構造と結晶方位・電気特性との関係を検討する.
(2)電場・温度によるドメインと局所構造の動的挙動を「その場観察」することにより構造と動的挙動の関係を解明する.
上記2つの検討を行うことでドメインならびに局所構造制御技術の確立を行う.得られた知見をフィードバックし,ドメイン・局所構造を精密制御した薄膜を用いて,構造と電気特性の関係を解明する.以上の検討を進めることで,高性能反強誘電薄膜開発のための設計指針を築くことを本研究の目的とする.

Outline of Final Research Achievements

In this work, the fabrication of NaNbO3-based antiferroelectric thin films and their energy storage capacity were investigated. Several antiferroelectric thin films (NaNbO3-CaZrO3, NaNbO3-SrZrO3 and NaNbO3-CaSnO3) were successfully fabricated. The control of growth direction for the antiferroelectric phase of NaNbO3 contributes the stabilization of the antiferroelectric phase in the film. Furthermore, the antiferroelectric thin films exhibited high thermal stability and an excellent energy storage density.

Academic Significance and Societal Importance of the Research Achievements

反強誘電体は強誘電体や常誘電体と比べ高い密度でエネルギーを蓄えることができるためエネルギー貯蔵用コンデンサなどへの応用が期待されている材料である.しかし,既報の材料は有害な鉛を用いたものが多く,非鉛化が求められている.本研究では非鉛反強誘電材料であるNaNbO3系酸化物薄膜の作製に成功し,そのエネルギー貯蔵特性は既報の誘電セラミックスに匹敵することを示した.また,NaNbO3系反強誘電薄膜の設計指針を見出しており,今後の材料設計に寄与する成果を得ている.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Fabrication of antiferroelectric NaNbO3-CaSnO3 film by pulsed laser deposition2021

    • Author(s)
      Beppu Kosuke、Funatomi Fumiya、Adachi Hideaki、Wada Takahiro
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 60 Issue: SF Pages: SFFB01-SFFB01

    • DOI

      10.35848/1347-4065/ac0ed2

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of NaNbO3-(Ca0.5Sr0.5)ZrO3 antiferroelectric thin film by pulsed laser deposition2021

    • Author(s)
      Beppu Kosuke、Inoue Ryoma、Adachi Hideaki、Wada Takahiro
    • Journal Title

      2021 IEEE International Symposium on Applications of Ferroelectrics (ISAF)

      Volume: - Pages: 1-4

    • DOI

      10.1109/isaf51943.2021.9477378

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Energy storage properties of antiferroelectric 0.92NaNbO3-0.08SrZrO3 film on (001)SrTiO3 substrate2020

    • Author(s)
      Beppu Kosuke、Shimasaki Takayuki、Fujii Ichiro、Imai Takahito、Adachi Hideaki、Wada Takahiro
    • Journal Title

      Physics Letters A

      Volume: 384 Issue: 27 Pages: 126690-126690

    • DOI

      10.1016/j.physleta.2020.126690

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fabrication of an antiferroelectric NaNbO3-CaZrO3 film on a (001)SrTiO3 substrate by pulsed laser deposition2019

    • Author(s)
      Beppu Kosuke, Iida Yosuke, Adachi Hideaki, Fujii Ichiro, Wada Takahiro
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: SL Pages: SLLB05-SLLB05

    • DOI

      10.7567/1347-4065/ab36ff

    • NAID

      210000156842

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Fabrication of NaNbO3-(Ca0.5Sr0.5)ZrO3 antiferroelectric thin film by pulsed laser deposition2021

    • Author(s)
      Kosuke Beppu, Ryoma Inoue, Takahiro Wada
    • Organizer
      ISAF ISIF PFM 2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] パルスレーザー蒸着法による反強誘電性NaNbO3-CaSnO3薄膜の作製2021

    • Author(s)
      別府孝介,舩冨郁也,和田隆博
    • Organizer
      第38回強誘電体会議
    • Related Report
      2020 Research-status Report
  • [Presentation] パルスレーザー蒸着法によるNaNbO3-(Ca0.5Sr0.5)ZrO3系反強誘電薄膜の作製2020

    • Author(s)
      別府孝介,井上諒真,和田隆博
    • Organizer
      第58回セラミックス基礎科学討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] パルスレーザー蒸着法による(001)SrTiO3 基板上への反強誘電性NaNbO3-CaZrO3薄膜の作製2019

    • Author(s)
      別府孝介,飯田陽介,足立秀明,藤井一郎,和田隆博
    • Organizer
      第36回強誘電体応用会議
    • Related Report
      2019 Research-status Report
  • [Presentation] Improvement of energy storage properties in antiferroelectric NaNbO3-SrZrO3 thin film on (001)SrTiO3 substrate2019

    • Author(s)
      Kosuke Beppu, Takayuki Shimasaki, Ichiro Fujii, Takahiro Wada
    • Organizer
      2019 E-MRS Fall Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi