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Material design and development for LED phosphors with multi-emitting centers in a single matrix

Research Project

Project/Area Number 17H03124
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic industrial materials
Research InstitutionNiigata University

Principal Investigator

Sato Mineo  新潟大学, 自然科学系, フェロー (30149984)

Co-Investigator(Kenkyū-buntansha) 戸田 健司  新潟大学, 自然科学系, 研究教授 (20293201)
板谷 篤司  帯広畜産大学, 畜産学部, 准教授 (60379708)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2017: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywords蛍光体 / LED照明 / セラミックス / 無機材料 / 無機工業化学 / 希土類 / LED蛍光体 / エネルギー移動
Outline of Final Research Achievements

White LED has a lot of attractive performance. It has higher luminescence efficiency about two times and longer decay time about four times than the fluorescent lamp. However, at present, the White-LED has a demerit coming from lack of a color rendering because of it consists of blue-LED and YAG:Ce3+ of yellow emitting phosphors. To solve this problem, we have proposed a concept of new phosphor materials showing a multi-colored emission in this research. During this research project, we have developed many multi-colored emitting phosphors, so that we are expecting to develop new lighting systems with much more energy saving and environmentally friendly performance.

Academic Significance and Societal Importance of the Research Achievements

わが国では照明によるエネルギー消費量は家庭で約16%,オフィスで約21%を占めており,少ないエネルギーで明るさを実現できる「高効率照明」への転換は急務である.白色LED照明ではその製造コストの低減,発光効率の向上など課題は多くある.現状のLED照明に使われている蛍光体は混合物となっている.これを1つの蛍光体で賄うことができれば多大な製造エネルギーの低減が可能になる.本研究では学術的にも実用的にも新しい「多色発光蛍光体の開発」という理念の下で行われたところに意義がある.本研究の成果は,光エネルギーの利用効率の向上を目指して持続可能な社会の構築に大きく貢献するものであると確信している.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (38 results)

All 2019 2018 2017

All Journal Article (10 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 10 results,  Open Access: 3 results) Presentation (28 results) (of which Int'l Joint Research: 8 results)

  • [Journal Article] Single Crystal Growth and Crystal Structure Analysis of Novel Orange-Red Emission Pure Nitride CaAl2Si4N8:Eu2+ Phospho2019

    • Author(s)
      Shota Hasegawa,Takuya Hasegawa,Sun Woog Kim, Ryota Yamanashi, Kazuyoshi Uematsu, Kenji Toda, and Mineo Sato
    • Journal Title

      ACS Omega

      Volume: 4 Issue: 6 Pages: 9939-9945

    • DOI

      10.1021/acsomega.9b00606

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Blue-light-pumped wide-band red emission in a new Ce3+-activated oxide phosphor, BaCa2Y6O12:Ce3+: Melt synthesis and photoluminescence study based on crystallographic analyses2019

    • Author(s)
      Takuya Hasegawa, Masato Iwaki, Sun Woog Kim, Tadaharu Ueda, Kazuyoshi Uematsu, Kenji Toda, Mineo Sato
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 797 Pages: 1181-1189

    • DOI

      10.1016/j.jallcom.2019.05.155

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Luminescence enhancement of LiSrPO4:Eu2+ phosphor by Mg2+ ion addition2019

    • Author(s)
      Shinnosuke Kamei, Tomoki Hatsumori,Takuya Hasegawa, Tadashi Ishigaki, Kazuyoshi Uematsu, Kenji Toda, Mineo Sato
    • Journal Title

      Materials Research Innovations

      Volume: 23 Issue: 6 Pages: 359-362

    • DOI

      10.1080/14328917.2018.1482650

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mild condition synthesis without high temperature process of Eu2+-doped barium orthosilicate nanophosphor via Water-Assisted Solid-State Reaction (WASSR) method2019

    • Author(s)
      Yusuke Shibuta, Takuya Hasegawa, Sun-Woog Kim, Kazuyoshi Uematsu, Kenji Toda, Mineo Sato
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 788 Pages: 1009-1012

    • DOI

      10.1016/j.jallcom.2019.02.295

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Single crystal growth of nitride and oxynitride phosphors using a gas-solid phase hybrid synthesis method2019

    • Author(s)
      Yuya Higuchi, Masato Iwaki, Atsuya Koizumi, Ryota Yamanashi, Kazuyoshi Uematsu, Kenji Toda, and Mineo Sato
    • Journal Title

      Japanese Journal of Applied Physics 58, SFFD01 (2019)

      Volume: 58 Issue: SF Pages: SFFD01-SFFD01

    • DOI

      10.7567/1347-4065/ab0c74

    • NAID

      210000155948

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Blue-yellow multicolor phosphor, Eu2+-activated Li3NaSiO4: Excellent thermal stability and quenching mechanism2019

    • Author(s)
      Masato Iwaki, Shota Kumagai, Shoma Konishi, Atsuya Koizumi, Takuya Hasegawa, Kazuyoshi Uematsu, Atsushi Itadani, Kenji Toda, Mineo Sato
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 776 Pages: 1016-1024

    • DOI

      10.1016/j.jallcom.2018.10.299

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Synthesis of Na<sub>2</sub>FePO<sub>4</sub>F using polytetrafluoroethylene2018

    • Author(s)
      Atsushi TSU-URA, Hirotaka TORII, Takuya HASEGAWA, Dai MURAYAMA, Sun Woog KIM, Kazuyoshi UEMATSU, Kenji TODA, and Mineo SATO
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 126 Issue: 5 Pages: 336-340

    • DOI

      10.2109/jcersj2.17230

    • NAID

      130006730922

    • ISSN
      1348-6535, 1882-0743
    • Year and Date
      2018-05-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structure of triaquatris(1,1,1-trifluoro-4-oxopentan-2-olato)cerium(III) as a possible fluorescent compound2018

    • Author(s)
      Koizumi, Atsuya, Hasegawa, Takuya, Itadani, Atsushi, Toda, Kenji, Zhu, Taoyun and Sato, Mineo
    • Journal Title

      Acta Crystallographica Section E

      Volume: 74 Issue: 2 Pages: 229-232

    • DOI

      10.1107/s2056989018001135

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A new lanthanum(III) complex containing acetylacetone and 1H-imidazole2017

    • Author(s)
      Koizumi, Atsuya, Hasegawa, Takuya, Itadani, Atsushi, Toda, Kenji, Zhu, Taoyun and Sato, Mineo
    • Journal Title

      Acta Crystallographica Section E

      Volume: 73 Issue: 11 Pages: 1739-1742

    • DOI

      10.1107/s205698901701461x

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Bluish-White Luminescence in Rare-Earth-Free Vanadate Garnet Phosphors: Structural Characterization of LiCa3MV3O12 (M = Zn and Mg)2017

    • Author(s)
      Hasegawa Takuya、Abe Yusuke、Koizumi Atsuya、Ueda Tadaharu、Toda Kenji、Sato Mineo
    • Journal Title

      Inorganic Chemistry

      Volume: 57 Issue: 2 Pages: 857-866

    • DOI

      10.1021/acs.inorgchem.7b02820

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 酸化物結晶における4f-5d間遷移による赤色発光実現にむけた設計コンセプト2019

    • Author(s)
      長谷川拓哉, 上田忠治, 戸田健司, 佐藤峰夫
    • Organizer
      第35回希土類討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 集光炉を用いたAl2O3-YAG:Ce3+蛍光体の合成2019

    • Author(s)
      田中諒, 岩城将人, 上松和義, 佐藤峰夫, 戸田健司
    • Organizer
      第35回希土類討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Development of Ba2(Si1-xMnx)O4 as novel blue pigments2019

    • Author(s)
      Hanada Ryu, UEMATSU Kazuyoshi, TODA Kenji, SATO Mineo, MASUI Toshiyuki
    • Organizer
      PACRIM13
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ,Luminescence of Mn4+ phosphor with octahedral Si site2019

    • Author(s)
      Sayaka Ito, Kazuyoshi Uematsu, Ryota Yamanashi, Hiroshi Okura, Stephan Detringer, Kenji Toda, Mineo Sato
    • Organizer
      PACRIM13
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新規紫色顔料KAl(P, Mn)2O7の合成及び特性評価2019

    • Author(s)
      大村晴起, 上松和義, 佐藤峰夫, 戸田健司
    • Organizer
      日本電子材料技術協会第56回秋期講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 白色 LED 用新規蛍光体の開発2019

    • Author(s)
      樋口裕哉, 上松和義, 佐藤峰夫, 戸田健司
    • Organizer
      日本電子材料技術協会 第 56 回秋期講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] WASSR (Water-Assisted Solid State Reaction)法による酸塩化物を用いたCs2MCl6 (M=Zr, Hf)の新規低温合成法の開発2019

    • Author(s)
      渡邊大, 上松和義, 佐藤峰夫, 戸田健司
    • Organizer
      東北北海道支部研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 近紫外励起蛍光体Ba6La2Al3ScO15:Ce3+におけるTb3+へのエネルギー移動2019

    • Author(s)
      小野寺瑞穂, 上松和義, 戸田健司, 佐藤峰夫
    • Organizer
      東北北海道支部研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] WASSR法によるLiCoO2の合成2019

    • Author(s)
      星司, 黒井丈史, 上松和義, 佐藤峰夫, 戸田健司
    • Organizer
      東北北海道支部研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ゼオライト中のEuイオンの発光特性:還元酸化挙動の検討2019

    • Author(s)
      板谷篤司, 丸山達也, 上松和義, 戸田健司, 佐藤峰夫
    • Organizer
      東北北海道支部研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] High Concentration Dy3+ Co-doped SrAl2O4:Eu2+ Synthesized by Melt Quenching Technique2019

    • Author(s)
      Ryo tanaka, Kazuyoshi Uematsu, Mineo Sato, Kenji Toda
    • Organizer
      Phosphor Safari 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A new low-temperature synthesis of K2NbO3F with NH4F as a fluorinating agent2019

    • Author(s)
      渡邊大, 上松和義, 佐藤峰夫, 戸田健司
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis of Nano LiCoO2 by Water-Assisted Solid-State Reaction Method2019

    • Author(s)
      Tsukasa Hosi, Takeshi Kuroi, Kazuyoshi Uematsu, Mineo Sato, Kenji Toda
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Water-Assisted Solid State Reaction (WASSR) 法を用いたナノ蛍光体の低温合成2019

    • Author(s)
      渋田裕介、長谷川拓哉、金善旭、上松和義、戸田健司、佐藤峰夫
    • Organizer
      第57回セラミックス基礎科学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Single Crystal Growth of Nitride and Oxynitride Phosphors using a Gas-Solid Phase Hybrid Synthesis Method2018

    • Author(s)
      樋口祐哉、勝峰徳、岩城将人、上松和義、戸田健司、佐藤峰夫
    • Organizer
      19th Int Workshop on Inorganic and Organic Electroluminescence / 2018 Int Conf on the Science and Technology of Emissive Displays and Lighting (EL2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Luminescence Properties in Ce3+-activated Rare Earth Oxide Host Materials2018

    • Author(s)
      勝峰徳、長谷川拓哉、上松和義、戸田健司、佐藤峰夫
    • Organizer
      Phosphor Safari 2018 in Seoul
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 集光炉を用いた溶融法による新規赤色蛍光体の合成2018

    • Author(s)
      勝峰徳、武藤雅、上松和義、戸田健司、佐藤峰夫
    • Organizer
      第55回日本電子材料技術協会秋季講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 近紫外LED用新規白色蛍光体Na3Sc2(PO4)3:Eu2+,Tb3+,Mn2+におけるエネルギー移動2018

    • Author(s)
      岩城将人、長谷川拓哉、上松和義、戸田健司、佐藤峰夫
    • Organizer
      日本希土類学会第34回希土類討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Novel Blue-Yellow Multicolor Phosphor, Eu2+-Activated Li3NaSiO42018

    • Author(s)
      岩城将人、長谷川拓哉、上松和義、戸田健司、佐藤峰夫
    • Organizer
      Phosphor safari 2018 in Seoul
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ca6BaP4O17:Eu2+におけるサイトエンジニアリング現象の調査2018

    • Author(s)
      岩城将人、長谷川拓哉、上松和義、戸田健司、佐藤峰夫
    • Organizer
      日本セラミックス協会 第31回秋季シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] サイトエンジニアリング現象を用いた白色LED用蛍光体の開発2018

    • Author(s)
      岩城将人、長谷川拓哉、上松和義、戸田健司、佐藤峰夫
    • Organizer
      第55回日本電子材料技術協会秋季講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 新規低温合成法によるMn2+塩化物蛍光体の合成2018

    • Author(s)
      千々波尚敏、上松和義、佐藤峰夫、戸田健司
    • Organizer
      日本セラミックス協会 第31回秋季シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] SrY2O4を母体とした近紫外LED用白色発光蛍光体の合成2018

    • Author(s)
      小野寺瑞穂、岩城将人、上松和義、戸田健司、佐藤峰夫
    • Organizer
      日本希土類学会第34回希土類討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 単一母体白色発光蛍光体におけるエネルギー移動のメカニズム解明2018

    • Author(s)
      小野寺瑞穂、岩城将人、上松和義、戸田健司、佐藤峰夫
    • Organizer
      平成30年度日本セラミックス協会東北北海道支部研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 集光炉を用いた新規緑色蛍光体SrCa2Lu10O18:Ce3+の合成2017

    • Author(s)
      勝峰徳、長谷川拓哉, 上松和義, 戸田健司, 佐藤峰夫
    • Organizer
      第54回日本電子材料技術協会秋期講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] WASSR(Water-Assisted solid state Reaction)法を用いたナノフォトセラミックスの合成2017

    • Author(s)
      渋田裕介、長谷川拓哉, 上松和義, 戸田健司, 佐藤峰夫
    • Organizer
      日本セラミックス協会第30回秋期シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] Eu2+によるLi3NaSiO4の白色発光メカニズムの解明2017

    • Author(s)
      岩城 将人、板谷篤司、上松和義, 戸田健司, 佐藤峰夫
    • Organizer
      日本希土類学会第33回希土類討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Eu(II)イオンの発光をプローブとしたMFI 型ゼオライト中のイオン交換サイトの状態解析2017

    • Author(s)
      丸山達也、板谷篤司、内山彩、上松和義、戸田健司、佐藤峰夫
    • Organizer
      日本希土類学会第33回希土類討論会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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