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Mechanical luminescence properties of lanthanide coordination crystals

Research Project

Project/Area Number 21H02031
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 36010:Inorganic compounds and inorganic materials chemistry-related
Research InstitutionNational Institute for Materials Science

Principal Investigator

NAKANISHI Takayuki  国立研究開発法人物質・材料研究機構, 電子・光機能材料研究センター, 主任研究員 (30609855)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2023: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2022: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2021: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Keywords蛍光体 / 希土類 / 配位結晶 / 刺激発光性 / 配位化合物 / 刺激発光 / 希土類配位蛍光体 / 単粒子解析 / 発光 / 力学刺激発光
Outline of Research at the Start

刺激発光は破壊など力学刺激により結晶固体が発光する現象である。ここではソフトな希土類配位結晶が示す刺激発光体の学理と材料化に向け、”一粒の結晶粒子”に注目した顕微単粒子分光解析を取り入れた学術研究を進め、その特異現象の原理解明と材料設計指針を明確する。具体的には、希土類配位化合物の単結晶を用いた顕微単粒子診断解析により、結晶構造および刺激発光を含めた光物性、破壊に関する機械特性を系統的にデータ収集し、その特徴量に用いて体系化する。また超音波ミスト合成法を運用して、新規の希土類配位結晶を多数見つけてその評価を進め質と量を揃えた物質創製研究を行う。

Outline of Final Research Achievements

The purpose of our study is to develop the materials science to clarify design guidelines for lanthanide coordination crystals that exhibit strong mechanically stimulated luminescence. Detailed spectroscopic measurements/analysis of lanthanide coordination crystals showing mechanically stimulated luminescence were performed to demonstrate the photophysics of this unique phenomenon and the design of materials that create stimulated luminescence, and to deepen materials chemistry. Specifically, we set up a microscopic spectrometer and measured the visible stimulated photo-emission from the crystals and the stimulated fluorescence lifetime τ/s necessary for the analysis of the emission rate constants. As a result, we were able to show that the actual values of the emission rate constants and non-radiation rate constants using single crystalline particles are significantly different from under light-excitation and mechanically stimulated-excitation .

Academic Significance and Societal Importance of the Research Achievements

本研究では希土類配位結晶が示すユニークな光機能の解明を目指す。立ち上げた測定システムの本格運用と多角的な見地からポリマー結晶や単核錯体など多くの刺激発光体の合成、評価を進めた。その結果、温度等のパラメータの違いに対して刺激発光励起と光発光励起の本質的な物理過程に違いがあることを見出すことができた。またりん光発光性の刺激発光体としてGdを用いた配位結晶による検討の結果、刺激発光の励起寿命時間の方が一様に長くなることがわかり、刺激発光の起源には有機配位子側の励起状態の寄与が深く関わっていることが明確にできた。本研究により新たな価値が付与された新しい光機能材料の開発が進むと考えている。

Report

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

    (16 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] Ca'Foscari University of Venice(イタリア)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Mechanofluorochromism and self-recovery of alkylsilylpyrene-1-carboxamides2024

    • Author(s)
      Hirai Yuichi、Wrona-Piotrowicz Anna、Zakrzewski Janusz、Ciechanska Magdalena、Ohmura Takahito、Takeda Takashi、Nakanishi Takayuki、Metivier Remi、Allain Clemence
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 12 Issue: 6 Pages: 1952-1957

    • DOI

      10.1039/d3tc03968d

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Thermostable Europium Polymer Crystalline Spherical Beads and Their Photophysical Properties2023

    • Author(s)
      Nakanishi Takayuki、Xu Jian、Hirosaki Naoto、Takeda Takashi
    • Journal Title

      Sensors and Materials

      Volume: 35 Issue: 2 Pages: 529

    • DOI

      10.18494/SAM4150

    • ISSN
      0914-4935, 2435-0869
    • Year and Date
      2023-02-20
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structural metamorphosis and photophysical properties of thermostable nano- and microcrystalline lanthanide polymer with flexible coordination chains2023

    • Author(s)
      Nakanishi Takayuki、Hirai Yuichi、Xu Jian、Takeda Takashi、Watanabe Shunsuke、Yasumori Atsuo、Hakamada Shou、Kitagawa Yuichi、Hasegawa Yasuchika
    • Journal Title

      Science and Technology of Advanced Materials

      Volume: 24 Issue: 1 Pages: 1-11

    • DOI

      10.1080/14686996.2023.2183711

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bright lanthanideIII tribolumines-cence despite low photoluminescence, and dual triboluminescence and mechano-responsive photoluminescence2023

    • Author(s)
      Yuichi Hirai, Stan Van Baaren, Takahito Ohmura, Takayuki Nakanishi, Takashi Takeda, Yuichi Kitagawa, Yasuchika Hasegawa, Remi Metivier and Clemence Allain
    • Journal Title

      Advanced Optical Materials

      Volume: 11 Issue: 9 Pages: 1-7

    • DOI

      10.1002/adom.202203139

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cyan-Emitting Sialon-Polytypoid Phosphor Discovered by a Single-Particle-Diagnosis Approach2021

    • Author(s)
      Jian Xu, Shiro Funahashi, Kohsei Takahashi, Takayuki Nakanishi, Naoto Hirosaki, Takashi Takeda
    • Journal Title

      ECS Journal of Solid State Science and Technology

      Volume: 10 Issue: 11 Pages: 1160021-6

    • DOI

      10.1149/2162-8777/ac331c

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 次世代LEDディスプレイを指向する古くも新しい希土類配位蛍光体2021

    • Author(s)
      中西貴之
    • Journal Title

      日本電子材料技術協会会報

      Volume: 52 Pages: 27-31

    • Related Report
      2021 Annual Research Report
  • [Presentation] 微小LEDディスプレイを指向する新規希土類配位蛍光体の光物性2023

    • Author(s)
      中西 貴之,許 健, 高橋 向星, 広崎 尚登, 武田 隆史
    • Organizer
      第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Decoding triboluminescence by a tetramorphic lanthanide(III) coordination polymer2023

    • Author(s)
      Hirai Yuichi, Ohmura Takahito, Nakanishi Takayuki, Takeda Takashi, Remi Metivier, Clemence Allain
    • Organizer
      11th International Conference on f-Elements
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 希土類無機分子の光機能2023

    • Author(s)
      中西 貴之
    • Organizer
      極限的励起状態の形成と量子エネルギー変換研究グループ 第13回研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 次世代LED-displayに向けた希土類配位蛍光体の材料設計と光機能評価2023

    • Author(s)
      中西 貴之
    • Organizer
      第393回蛍光体同学会講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Polymorphic lanthanide(III) coordination polymers with mechano-responsive luminescence2022

    • Author(s)
      HIRAI Yuichi, OHMURA Takahito, TAKEDA Takashi, NAKANISHI Takayuki
    • Organizer
      44th International Conference on Coordination Chemistry
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bright Triboluminescence of An Inefficient Photoluminescent Eu(III) Complex2022

    • Author(s)
      HIRAI Yuichi, TAKEDA Takashi, OHMURA Takahito, NAKANISHI Takayuki
    • Organizer
      29th RARE EARTH RESEARCH CONFERENCE (RERC29)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 蛍光体単結晶を用いた光励起状態からのエネルギー移動経路の検討2021

    • Author(s)
      中西貴之
    • Organizer
      応用物理学会 極限的励起状態の形成と量子エネルギー変換研究グループ 第1回研究会 (兼 第17回次世代先端光科学研究会)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 光電流法による希土類蛍光体の電荷移動経路2021

    • Author(s)
      中西 貴之, 角野 裕貴, 北川 裕一, 樋口 幹雄, 竹村 翔太, 高橋 向星, 武田 隆史, 長谷川 靖哉, 廣崎 尚登
    • Organizer
      第37回希土類討論会
    • Related Report
      2021 Annual Research Report
  • [Patent(Industrial Property Rights)] 発光測定装置および発光測定方法2021

    • Inventor(s)
      中西貴之、武田隆史、高橋向星、広崎尚登
    • Industrial Property Rights Holder
      物質・材料研究機構
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-110727
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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

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