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Development of composite-type nanocube assemblies for next generation piezoelectric devices

Research Project

Project/Area Number 17K18418
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Inorganic materials/Physical properties
Inorganic industrial materials
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Mimura Ken-ichi  国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (20709555)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords圧電材料 / ナノ結晶 / ナノキューブ / チタン酸バリウム / ヘテロ界面 / 水熱合成 / ヘテロエピタキシャル界面 / コアシェル構造 / コンポジット構造 / ナノクリスタル / 固溶体 / 圧電体材料 / 誘電体材料 / ナノ材料 / 自己組織化 / セラミックス / 結晶工学 / 誘電体物性
Outline of Final Research Achievements

Novel cube-shaped nanocrystals of BaTiO3 (BT) surrounded by CaTiO3 (CT) were synthesized using a one-step hydrothermal reaction with surfactant and additives. The size distribution of the nanocubes (NCs) was narrow, with a peak of approximately 80 nm. The nanocubes had a core-shell configuration, such that the Pbnm structured CT shell was epitaxially grown on a BT core by sharing corresponding [001] directions. Piezoelectric hysteresis loops of BT/CT NCs were obtained by piezoresponse force microscopy. These core-shell nanocubes which are synthesized by one-pot hydrothermal method have a great potential to be one of the candidates for piezo-driven energy harvesting devices.

Academic Significance and Societal Importance of the Research Achievements

これまで、ヘテロ界面が誘電特性や圧電特性を向上させる報告はあったが、合成方法が複雑であり、多段階の反応を必要とし、同時にナノ結晶の形状制御を達成した報告はない。本研究成果では、特殊な原料を用いることなく、1段階で粒子内部にヘテロ界面を導入すると同時に粒子形態の制御を初めて可能とし、ヘテロ界面による特性向上の傾向も得られた。これらの成果は高機能ナノ材料の量産化への一歩として大きな意義を有する。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Products Report
  • Research Products

    (4 results)

All 2023 2020 2019

All Presentation (2 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Patent(Industrial Property Rights) (2 results)

  • [Presentation] One pot synthesis of dielectric BaTiO3 based nanocubes including hetero-epitaxial interfaces by hydrothermal method2020

    • Author(s)
      Ken-ichi Mimura, Zheng Liu, Hiroki Itasaka, Kazumi Kato
    • Organizer
      Electronic Materials and Applications 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 次世代キャパシタデバイスに向けた誘電体ナノクリスタルの開発2020

    • Author(s)
      三村憲一、板坂浩樹、安井久一、劉崢、加藤一実
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Patent(Industrial Property Rights)] ナノ結晶及びその製造方法2023

    • Inventor(s)
      三村憲一、劉崢、板坂浩樹、加藤一実
    • Industrial Property Rights Holder
      国立研究開発法人産業技術総合研究所
    • Industrial Property Rights Type
      特許
    • Acquisition Date
      2023
    • Related Report
      Products Report
  • [Patent(Industrial Property Rights)] ナノ結晶及びその製造方法2019

    • Inventor(s)
      三村憲一、劉崢、板坂浩樹、加藤一実
    • Industrial Property Rights Holder
      国立研究開発法人産業技術総合研究所
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-179745
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report

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Published: 2017-04-28   Modified: 2024-03-28  

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