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JO MASAFUMI  定 昌史

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Jo Masafumi  定 昌史

JO Masafumi  定 昌史

定 昌史  ジヨウ マサフミ

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Researcher Number 20400020
Affiliation (Current) 2025: 国立研究開発法人理化学研究所, 開拓研究所, 専任研究員
Affiliation (based on the past Project Information) *help 2019 – 2021: 国立研究開発法人理化学研究所, 開拓研究本部, 専任研究員
2013 – 2014: 独立行政法人理化学研究所, 平山量子光素子研究室, 研究員
2012: 独立行政法人物質・材料研究機構, その他部局等, 研究員
2006: 北大, 電子科学研究所
Review Section/Research Field
Principal Investigator
Applied materials science/Crystal engineering / Basic Section 30010:Crystal engineering-related
Keywords
Principal Investigator
LED / MOCVD / 発光ダイオード / 双晶 / AlN / エピタキシャル成長 / 窒化物半導体 / 半極性 / 深紫外 / EL … More / PL / 半極性面 / AlGaN / AlAs / 単一光子発生 / 電子状態 / AlGaAs / 直接遷移 / 間接遷移 / 歪分布 / 等電子中心 / 窒素 / アルミニウム砒素 / 量子光源 Less
  • Research Projects

    (3 results)
  • Research Products

    (7 results)
  • Co-Researchers

    (3 People)
  •  Low Dislocation of Semi-Polar AlN Virtual Substrates by Multi-Step High Temperature Growth Method and Deep UV Light Emitting DiodesPrincipal Investigator

    • Principal Investigator
      Jo Masafumi
    • Project Period (FY)
      2019 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 30010:Crystal engineering-related
    • Research Institution
      Institute of Physical and Chemical Research
  •  Nitrogen impurity states in AlAs for visible quantum light sourcesPrincipal Investigator

    • Principal Investigator
      JO Masafumi
    • Project Period (FY)
      2012 – 2014
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Applied materials science/Crystal engineering
    • Research Institution
      The Institute of Physical and Chemical Research
      National Institute for Materials Science
  •  空間分離した電子正孔対を用いた量子もつれ合い光子対発生に関する研究Principal Investigator

    • Principal Investigator
      定 昌史
    • Project Period (FY)
      2006
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Applied materials science/Crystal engineering
    • Research Institution
      Hokkaido University

All 2021 2014 2013 2012 Other

All Journal Article Presentation

  • [Journal Article] Tight-binding analysis of the electronic states in AlAs with N isoelectronic impurities2014

    • Author(s)
      Masafumi Jo, Takaaki Mano, Yoshiki Sakuma, Kazuaki Sakoda
    • Journal Title

      Journal of Applied Physics

      Volume: 115 Issue: 12 Pages: 123501-123501

    • DOI

      10.1063/1.4869261

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23340090, KAKENHI-PROJECT-24760015, KAKENHI-PROJECT-25289091
  • [Journal Article] Visible Single-Photon Emission from a Nitrogen Impurity Center in AlAs2013

    • Author(s)
      M. Jo, T. Mano, T. Kuroda, Y. Sakuma, and K. Sakoda
    • Journal Title

      Appl. Phys. Lett

      Volume: Vol.102 Issue: 6 Pages: 62107-62107

    • DOI

      10.1063/1.4792315

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22360133, KAKENHI-PROJECT-23340090, KAKENHI-PROJECT-24760015
  • [Presentation] Fabrication of semipolar AlGaN UV LEDs on sapphire substrates2021

    • Author(s)
      Masafumi Jo
    • Organizer
      International Workshop on Junction Technology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K05297
  • [Presentation] Fabrication of semipolar AlGaN UV LEDs on sapphire substrates2021

    • Author(s)
      Masafumi Jo
    • Organizer
      The 20th International Workshop on Junction Technology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K05297
  • [Presentation] AlAs中のN等電子中心2012

    • Author(s)
      定 昌史,間野 高明,黒田 隆,佐久間 芳樹,迫田 和彰
    • Organizer
      2012年秋季 第73回応用物理学会学術講演会
    • Place of Presentation
      愛媛大学
    • Data Source
      KAKENHI-PROJECT-24760015
  • [Presentation] Evolution from isoelectronic impurities to an alloy in nitrogen delta-doped AlAs grown by molecular beam epitaxy2012

    • Author(s)
      M. Jo, T. Mano, Y. Sakuma, and K. Sakoda
    • Organizer
      The 17th International Conference on Molecular Beam Epitaxy
    • Place of Presentation
      Nara, Japan
    • Data Source
      KAKENHI-PROJECT-24760015
  • [Presentation] Yellow single-photon emission from nitrogen impurity centers in AlAs

    • Author(s)
      M. Jo, T. Mano, T. Kuroda, Y. Sakuma, K. Sakoda
    • Organizer
      SPIE 2014
    • Place of Presentation
      San Diego, California, USA
    • Year and Date
      2014-08-17 – 2014-08-21
    • Invited
    • Data Source
      KAKENHI-PROJECT-24760015
  • 1.  SAKUMA Yoshiki
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 2.  間野 高明
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 3.  迫田 和彰
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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