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Structural control of organic-inorganic hybrid compounds for the development of fast response scintillators

Research Project

Project/Area Number 19K20596
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 80040:Quantum beam science-related
Research InstitutionAkita University

Principal Investigator

Kawano Naoki  秋田大学, 理工学研究科, 講師 (60800886)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsシンチレータ / ドシメータ / 量子井戸 / 励起子
Outline of Research at the Start

本研究では、有機無機ペロブスカイト型化合物を用いたシンチレータの開発を行う。シンチレータとは高エネルギー放射線を低エネルギー光子に変換する材料であり、医療や高エネルギー物理学等で使用されている。本研究では、有機無機ペロブスカイト型化合物の構造・組成制御を通じて、当該化合物の結晶構造の歪みを誘発することで、上記用途に向けた革新的シンチレータを開発する。本研究では貧溶媒拡散法により単結晶を育成し、得られた単結晶の光物性・シンチレーション特性の評価を行う。得られた結果のフィードバックを行うことで、性能の改善に努める。

Outline of Final Research Achievements

Organic-inorganic layered perovskite-type compounds have gained much attention because of their unique exciton properties due to the quantum size effect, and they can be used as fast response scintillators for various applications such as spectroscopies at a synchrotron facility. In this work, we evaluated a mixed cation effect on the scintillation properties of (C6H5C2H4NH3)2PbBr4. The compounds with a chemical composition of (C6H5C2H4NH3)2Pb1-xMxBr4 (M: Cd, Zn, Sn, Ni) were found to show fast decay times about 10 ns, and high light yields about 20000 photons/MeV, which were higher than that of (C6H5C2H4NH3)2PbBr4.

Academic Significance and Societal Importance of the Research Achievements

シンチレータとは高エネルギーの放射線を低エネルギーの光に変換する蛍光体材料であり、医療機器やセキュリティ機器、資源探索など様々な用途に利用されている。今回、有機無機ペロブスカイト型化合物の組成制御を通じて、高い発光量及び数ナノ秒の寿命を示す化合物を作製に成功した。この発光特性は、癌診断で利用されるポジトロン断層法装置や放射光施設での分光測定など、高い発光量と短い寿命の光学特性が不可欠な様々な用途への応用が期待される。

Report

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

    (19 results)

All 2021 2020 2019 2018

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Scintillation properties of (C6H5C2H4NH3)2Pb1-Sn Br4 crystals having two-dimensional quantum-well structures2021

    • Author(s)
      Onoda Daichi、Akatsuka Masaki、Kawano Naoki、Nakauchi Daisuke、Kato Takumi、Kawaguchi Noriaki、Yanagida Takayuki
    • Journal Title

      Optical Materials

      Volume: 114 Pages: 111002-111002

    • DOI

      10.1016/j.optmat.2021.111002

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of (C6H5C2H4NH3)2Pb1-Cd Br4 crystal scintillators with two-dimensional quantum-well structures2021

    • Author(s)
      Onoda Daichi、Akatsuka Masaki、Kawano Naoki、Nakauchi Daisuke、Kato Takumi、Kawaguchi Noriaki、Yanagida Takayuki
    • Journal Title

      Journal of Luminescence

      Volume: 237 Pages: 118157-118157

    • DOI

      10.1016/j.jlumin.2021.118157

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoluminescence and Scintillation Properties of Organic–Inorganic Perovskite-type Compounds with Bromophenethylamine2020

    • Author(s)
      Horimoto Atsushi、Kawano Naoki、Nakauchi Daisuke、Kimura Hiromi、Akatsuka Masaki、Yanagida Takayuki
    • Journal Title

      Sensors and Materials

      Volume: 32 Issue: 4 Pages: 1395

    • DOI

      10.18494/SAM.2020.2747

    • ISSN
      0914-4935, 2435-0869
    • Year and Date
      2020-04-20
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoluminescence and scintillation properties of (C6H5C2H4NH3)2Pb1-xZnxBr4 as a two-dimensional quantum-confined scintillator2020

    • Author(s)
      Onoda Daichi、Akatsuka Masaki、Kawano Naoki、Nakauchi Daisuke、Kato Takumi、Kawaguchi Noriaki、Yanagida Takayuki
    • Journal Title

      Journal of Materials Science: Materials in Electronics

      Volume: 31 Issue: 23 Pages: 20798-20804

    • DOI

      10.1007/s10854-020-04592-0

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Scintillation properties of organic-inorganic layered perovskite nanocrystals in glass2020

    • Author(s)
      Kawano Naoki、Shinozaki Kenji、Nakauchi Daisuke、Kimura Hiromi、Yanagida Takayuki
    • Journal Title

      Journal of Applied Physics

      Volume: 127 Issue: 21 Pages: 213103-213103

    • DOI

      10.1063/5.0007084

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rapid Synthesis of Quantum-Sized Organic?Inorganic Perovskite Nanocrystals in Glass2020

    • Author(s)
      Shinozaki Kenji、Kawano Naoki
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 1237-1237

    • DOI

      10.1038/s41598-020-58266-2

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Scintillation properties of organic-inorganic perovskite-type compounds with fluorophenethylamine2020

    • Author(s)
      A. Horimoto, N. Kawano, D. Nakauchi, H. Kimura, M. Akatsuka, T. Yanagida
    • Journal Title

      Optical Materials

      Volume: 101 Pages: 1096686-1096686

    • DOI

      10.1016/j.optmat.2020.109686

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of scintillating 2D quantum confinement materials - (C6H5C2H4NH3)2Pb1-xSrxBr42018

    • Author(s)
      Akatsuka Masaki、Kawano Naoki、Kato Takumi、Nakauchi Daisuke、Okada Go、Kawaguchi Noriaki、Yanagida Takayuki
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: - Pages: 161372-161372

    • DOI

      10.1016/j.nima.2018.10.050

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 量子閉じ込め型シンチレータ(C6H5C2H4NH3)2Pb1-xCdxBr4の開発2021

    • Author(s)
      小野田大地, 赤塚雅紀, 河野直樹, 中内大介, 加藤匠, 河口範明, 柳田健之
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] (C6H5CnH2nNH3)2PbBr4 (n = 2, 3, 4)のシンチレーション特性2021

    • Author(s)
      長岡亮, 堀本篤史, 河野直樹, 中内大介, 木村大海, 赤塚雅紀, 柳田健之
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Mn添加 (CH3NH3)PbCl3の放射線応答性2021

    • Author(s)
      河野直樹, 赤塚雅紀, 木村大海, 中内大介, 加藤匠, 柳田健之
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 二次元量子井戸構造を有する(C6H5C2H4NH3)2Pb1-xSnxBr4のシンチレーション特性,2021

    • Author(s)
      小野田大地, 赤塚雅紀, 河野直樹, 中内大介, 加藤匠, 河口範明, 柳田健之
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 有機無機ペロブスカイト型化合物(C6H5C2H4NH3)2Pb1-xZnxBr4のシンチレーション特性2020

    • Author(s)
      小野田大地, 赤塚雅紀, 河野直樹, 中内大介, 加藤匠, 河口範明, 柳田健之
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] メトキシフェネチルアミン含有有機無機ペロブスカイト型化合物の放射線検出特性2020

    • Author(s)
      堀本篤史, 河野直樹, 木村大海, 中内大介, 赤塚雅紀, 柳田健之
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] クロロフェネチルアミン含有有機無機ペロブスカイト型化合物を用いた高速応答シンチレータ開発2020

    • Author(s)
      堀本篤史, 河野直樹, 中内大介, 木村大海, 赤塚雅紀, 柳田健之
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] フルオロフェネチルアミン含有有機無機ペロブスカイト型化合物を用いた高速応答シンチレータの作製2019

    • Author(s)
      堀本篤史, 河野直樹, 中内大介, 木村大海, 赤塚雅紀, 柳田健之
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] ブロモフェネチルアミン導入による有機無機ペロブスカイト型化合物の放射線検出特性への影響2019

    • Author(s)
      堀本篤史, 河野直樹, 木村大海, 中内大介, 赤塚雅紀, 柳田健之
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] (C6H5C2H4NH3)2Pb1-xCaxBr4有機無機複合単結晶のシンチレーション特性2019

    • Author(s)
      赤塚雅紀, 河野直樹, 河口範明, 柳田健之
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Luminescence properties of organic-inorganic layered perovskite-type compounds under UV and X-ray irradiation2019

    • Author(s)
      N. Kawano, M. Koshimizu, A. Horiai, F. Nishikido, R. Haruki, S. Kishimoto, K. Shibuya, Y. Fujimoto, T. Yanagida, K. Asai
    • Organizer
      GFMAT-2
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2022-01-27  

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