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Panoscopic Assembling and High Ordered Function for Luminescent Rare-earth Materials

Research Project

Project/Area Number 20900140
Allocation TypeSingle-year Grants
Research InstitutionTokyo University of Technology

Principal Investigator

YAMAMOTO Hajime  東京工科大学, 片柳研究所, 客員教授 (00247298)

Co-Investigator(Renkei-kenkyūsha) MIYAMOTO Yoshinobu  鳥取大学, 工学部附属電子ディスプレイ研究センター, プロジェクト研究員 (90373042)
Project Period (FY) 2008
Project Status Completed (Fiscal Year 2008)
Keywords蛍光体 / 白色LED / 窒化物 / 希土類 / 不純物相 / 部分窒化 / 電子線照射 / 発光効率
Outline of Final Research Achievements

白色LEDなどの応用に資するため, 希土類添加珪窒化物, 珪酸化物の発光特性と局所構造の関係を追及した. 主な結果は以下の通り. (1)赤色発光CaAlSiN_3:Eu^<2+>の空間群を決定し, Si/Alの無秩序分布を示した. (2)酸化物の部分窒化によりSr_3Al_<10-x>Si_<1+x>O_<20-x>N_x:Eu^<2+>を創成し, 発光効率を向上. (3)黄色発光(Sr,Ba)_2SiO_4:Eu^<2+>の温度特性がSrまたはBa単一の組成より良いことを見出した.

Report

(2 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • Research Products

    (12 results)

All 2009 2008

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (8 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] An analysis of crystal structure of Ca-deficient oxonitridoaluminosilicate, Ca_<0.88>A1_<0.91> Si_<1.09>N_<2.85>O_<0.15>2009

    • Author(s)
      K. Uheda, H. Yamamoto, H. Yamane, W. Inami, K. Tsuda, Y. Yamamoto and N. Hirosaki
    • Journal Title

      Journal of the Ceramic Society of Japan 117

      Pages: 94-98

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An orange-emitting, long-persistent phosphor, Ca_2Si_5N_8 : Eu, Tm2009

    • Author(s)
      Y. Miyamoto, H. Yamamoto, H. Kato, Y. Honna and K. Ohmi
    • Journal Title

      Journal of the Electrochemical Society 156(掲載決定)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ba-Substitution Effect on Luminescent Properties and Thermal Degradation of Sr3 MgSi_2O_8:Eu^<2+> Blue Phosphor Under Vacuum-UV-Light Excitation2008

    • Author(s)
      S. Okamoto, Y. Nanba, T. Honma and H. Yamamoto
    • Journal Title

      Electrochemistry and Solid-State Letters 11

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] 青色蛍光体Sr_3AI_<10>SiO_<20>の部分窒化と発光特性(1)2009

    • Author(s)
      三上昌義, 伊村宏之, 上田恭太, 木島直人, 松尾仁史, 宮本快暢, 山元明
    • Organizer
      第56回応用物理学会関係連合講演会
    • Place of Presentation
      筑波大学筑波キャンパス
    • Year and Date
      2009-03-31
    • Related Report
      2008 Annual Research Report
  • [Presentation] 青色蛍光体Sr_3Al_<10>SiO_<20>の部分窒化と発光特性(II)2009

    • Author(s)
      松尾仁史, 三上昌義, 上田恭太, 木島直人, 宮本快暢, 山元明
    • Organizer
      第56回応用物理学会関係連合講演会
    • Place of Presentation
      筑波大学筑波キャンパス
    • Year and Date
      2009-03-31
    • Related Report
      2008 Annual Research Report
  • [Presentation] Eu^<2+>の発光遷移確率に対する母体結晶の影響2009

    • Author(s)
      須田順子, 山元明
    • Organizer
      第56回応用物理学会関係連合講演会
    • Place of Presentation
      筑波大学筑波キャンパス
    • Year and Date
      2009-03-31
    • Related Report
      2008 Annual Research Report
  • [Presentation] 電子線に射による蛍光体劣化の評価2009

    • Author(s)
      相原隼人, 山元明
    • Organizer
      電気化学会第76回大会
    • Place of Presentation
      京都大学吉田山キャンパス
    • Year and Date
      2009-03-29
    • Related Report
      2008 Annual Research Report
  • [Presentation] M_2SiO_4 : Eu^<2+>(M=Ca, Sr.Ba)蛍光体の結晶構造による発光特性の変化2009

    • Author(s)
      山本浩平, 山元明
    • Organizer
      電気化学会第76回大会
    • Place of Presentation
      京都大学吉田山キャンパス
    • Year and Date
      2009-03-29
    • Related Report
      2008 Annual Research Report
  • [Presentation] Progressin Nitrideand Oxynitride Phosphors2008

    • Author(s)
      H. Yamamoto and K. Uheda
    • Organizer
      International Display Workshops (IDW'08)
    • Place of Presentation
      新潟市, ときメッセ
    • Year and Date
      2008-12-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] An orange-emitting, long-persistent phosphor, Ca2Si5N8 : Eu, Tm2008

    • Author(s)
      H. Yamamoto, Y. Miyamoto, H. Kato, Y. Honna and K. Ohmi
    • Organizer
      Pacific Rim Meeting on Electrochemistry and Solid Stat e Science (PRiME), The Electrochemical Society
    • Place of Presentation
      ホノルル市, 米国
    • Year and Date
      2008-10-13
    • Related Report
      2008 Annual Research Report
  • [Presentation] Looking Back to Look Forward in the Research of Inorganic Phosphors2008

    • Author(s)
      H. Yamamoto
    • Organizer
      2008 International Conference on the Science and Techn ology of Emissive Displays and Lighting
    • Place of Presentation
      ローマ市, イタリア
    • Year and Date
      2008-09-09
    • Related Report
      2008 Annual Research Report
  • [Patent(Industrial Property Rights)] 蛍光体, 蛍光体含有組成物, 発光装置, 画像表示装置及びに明装置2009

    • Inventor(s)
      松尾仁史,宮本快暢, 山元明, 三上昌義, 上田恭太, 木島直人, 伊村宏之
    • Industrial Property Rights Holder
      三菱化学(株)
    • Industrial Property Number
      2009-016466
    • Filing Date
      2009-01-28
    • Related Report
      2008 Annual Research Report

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Published: 2010-06-11   Modified: 2016-11-18  

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