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

Polar layered perovskite materials for UV-NIR photoelectric conversion

Research Project

Project/Area Number 21K19027
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
Research InstitutionKyushu University

Principal Investigator

Akamatsu Hirofumi  九州大学, 工学研究院, 准教授 (10776537)

Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords光-電気エネルギー変換材料 / 層状ペロブスカイト / 第一原理計算 / シフト電流 / 強誘電体
Outline of Research at the Start

本研究では、従来型の光発電システムとは全く異なる原理で駆動し、紫外-近赤外領域の電磁波を最大限に利用できる革新的光-電気エネルギー変換材料の創製を目指し、以下の二つの課題に取り組む。(1)紫外-近赤外領域で強い光吸収と高いシフト電流を示すポーラー物質を創製する。(2)第一原理に基づきシフト電流テンソルを計算し、実験・計算結果をスペクトル学的に理解し、高シフト電流材料の設計指針を構築する。

Outline of Final Research Achievements

We have developed and enhanced the techniques for predicting bulk photovoltaic effects, or shift current effects, in ferroelectric or polar materials using first-principles calculations based on density functional theory. Hybrid improper ferroelectrics are promising platform materials for polar materials with strong optical absorption in the UV-NIR region. The structural phase transition behavior and dielectric properties of Dion-Jacobson-type layered perovskite Cs(La,Nd)Nb2O7 were investigated in detail. It was found that the Curie point can be precisely tuned by the composition, which is a useful knowledge for the design of materials with high shift current.

Academic Significance and Societal Importance of the Research Achievements

鉄鋼などの製造業では高温プロセスが必須であり、熱輻射が必ず生じる。この熱輻射を電気エネルギーへ効率良く変換できれば、環境への負荷を低減できる。本研究では、強誘電体あるいはポーラー物質におけるバルク光起電力効果、すなわちシフト電流効果を用いた次世代型光-電気エネルギー変換材料の設計指針の構築に向けて、シフト電流テンソルを理論計算により予測する技術基盤の整備と強化、および、有望物質と考えられる層状ペロブスカイトの構造相転移挙動と誘電特性の調査を行なった。

Report

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

    (10 results)

All 2023 2022 2021

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results) Presentation (7 results) (of which Invited: 1 results)

  • [Journal Article] Interplay between Oxygen Octahedral Rotation and Deformation in the Acentric ARTiO4 Series toward Negative Thermal Expansion2022

    • Author(s)
      Yoshida Suguru、Akamatsu Hirofumi、Gibbs Alexandra S.、Kawaguchi Shogo、Gopalan Venkatraman、Tanaka Katsuhisa、Fujita Koji
    • Journal Title

      Chemistry of Materials

      Volume: 34 Issue: 14 Pages: 6492-6504

    • DOI

      10.1021/acs.chemmater.2c01245

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Topochemical Synthesis of LiCoF3 with a High-Temperature LiNbO3-Type Structure2022

    • Author(s)
      Matsuo Yumi、Matsukawa Yuko、Kitakado Masahiro、Hasegawa George、Yoshida Suguru、Kubonaka Ryoto、Yoshida Yuya、Kawasaki Tatsushi、Kobayashi Eiichi、Moriyoshi Chikako、Ohno Saneyuki、Fujita Koji、Hayashi Katsuro、Akamatsu Hirofumi
    • Journal Title

      Inorganic Chemistry

      Volume: 61 Issue: 30 Pages: 11746-11756

    • DOI

      10.1021/acs.inorgchem.2c01439

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electronic Origin of Non-Zone-Center Phonon Condensation: Octahedral Rotation as a Case Study2021

    • Author(s)
      Yoshida Suguru、Akamatsu Hirofumi、Hayashi Katsuro
    • Journal Title

      Physical Review Letters

      Volume: 127 Issue: 21 Pages: 215701-215701

    • DOI

      10.1103/physrevlett.127.215701

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 高温ニオブ酸リチウム型構造をもつ LixCoF3のトポケミカル合成と局所構造解析2023

    • Author(s)
      赤松 寛文・松尾 祐美・松川 祐子・大 野 真之・林 克郎・小野寺 陽平
    • Organizer
      日本セラミックス協会 2023 年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] SPS 法により作製した Li2SrNb2O7セラミックスの誘電特性2022

    • Author(s)
      秋 徹志・赤松 寛文・大野 真之・林 克郎
    • Organizer
      第35回秋季シンポジウム 日本セラミックス協会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Topochemical Synthesis and Crystal Structure Analysis of LiCoF32022

    • Author(s)
      Hirofumi Akamatsu
    • Organizer
      International Workshop on Exploration of Atomistic Disorder in Long-Range Ordered Systems and of Order in Disordered Materials
    • Related Report
      2022 Annual Research Report
  • [Presentation] 放射光を用いた新規フッ化物LixCoF3の 結晶構造・電子状態解析2022

    • Author(s)
      松尾祐美,松川祐子,北角将晃,長谷川丈二,吉田傑, 久保中亮翔,吉田悠哉,川崎龍志,小林英一,森吉千佳子, 大野真之,藤田晃司,林克郎,赤松寛文
    • Organizer
      XAFS討論会・SAGA-LS成果報告会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 低許容因子ペロブスカイト型フッ化物LixCoF3のトポケミカル合成2021

    • Author(s)
      松尾祐美、松川祐子、北角将晃、赤松寛文、長谷川丈二、吉田傑、大野真之、林克郎
    • Organizer
      日本セラミックス協会第34回秋季シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] 層状ペロブスカイトNaLaTiO4へのフッ素導入による配位八面体回転誘起2021

    • Author(s)
      石渕圭祐、赤松寛文、吉田傑、大野真之、林克郎
    • Organizer
      日本セラミックス協会第34回秋季シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] Fluorination-Induced Rotations of Anion Coordinated Octahedra in a Layered Perovskite NaLaTiO42021

    • Author(s)
      Hirofumi Akamatsu, Keisuke Ishibuchi, Suguru Yoshida, Saneyuki Ohno, Katsuro Hayashi
    • Organizer
      International Conference on Mixed Anion Compounds
    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-07-13   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi