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Defects modification and light energy saving in nano-structured glass ceramics

Research Project

Project/Area Number 23656391
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Inorganic materials/Physical properties
Research InstitutionTohoku University

Principal Investigator

FUJIWARA Takumi  東北大学, 工学(系)研究科(研究院), 教授 (10278393)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords残光・蓄光特性 / 希土類フリー発光体 / ガラス結晶化 / 欠陥構造制御 / 希土類フリー
Research Abstract

It is very important that the severe saving of all kind of energy and multi-purpose use of solar energy for maintaining the human society developed by the industrial technology until the future next generation. We fabricated the novel nano-structured glass ceramics by using precise controlled heat-treatments with the modification of the oxygen deficient vacancies during glass crystallization. The newly developed crystallized glass of the single crystalline phase of zirconia (oxide zirconium) with monoclinic symmetry was successfully obtained for the first time in our best knowledge. It has been found that the long lasting emission with green light from the obtained crystallized glass in this rare-earth free glass system was obtained, and this is promising properties for high efficient conversion of solar lights in amorphous Si materials, which are quite useful for realizing thin film and cost-effective solar panel.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (23 results)

All 2014 2013 2012 2011 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (8 results) (of which Invited: 4 results) Book (3 results) Remarks (4 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Emission property of Sn2+-doped ZnO-P2O5 glass2014

    • Author(s)
      H. Masai, T. Fujiwara
    • Journal Title

      Journal of Non-Crystalline Solids

      Volume: 383 Pages: 184-187

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crystal domain growth driven by nanometric phase separation in perfect surface crystallization2013

    • Author(s)
      Y. Takahashi, T. Fujiwara
    • Journal Title

      Applied Physics Letters

      Volume: 103

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural relaxation and quasi-elastic light scattering in glass: Approach by ferroelectric and ion-conducting phases2012

    • Author(s)
      Y. Takahashi, T. Fujiwara
    • Journal Title

      Scientific Reports, 2, (2012), 714

      Volume: 2 Issue: 1

    • DOI

      10.1038/srep00714

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Correlation between emission property and concentration of Sn2+ center in the SnO-ZnO-P2O5 glass2012

    • Author(s)
      H. Masai, T. Fujiwara
    • Journal Title

      Optics Express

      Volume: 20巻 Issue: 25 Pages: 27319-27326

    • DOI

      10.1364/oe.20.027319

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of annealing at maximum nucleation temperature on boson peak in lithium-disilicate glass2012

    • Author(s)
      K. Nakamura, T. Fujiwara
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 120 Pages: 256-258

    • NAID

      130004480060

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Formation of Zn defects in willemite-type Zn_2GeO_4 during supercooled liquid-crystal phase transition2011

    • Author(s)
      高橋儀宏, 安藤正尊, 井原梨恵, 藤原巧
    • Journal Title

      Applied Physics Letters

      Volume: Vol.98 Issue: 22

    • DOI

      10.1063/1.3597300

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Presentation] Why does single-domain crystal form in nonstoichiometric glass?: Micro- and nanoscopic study in fresnoite glass-ceramics2013

    • Author(s)
      Y. Takahashi, T. Fujiwara
    • Organizer
      The 23rd International Congress on Glass
    • Place of Presentation
      Prague, Czech
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] The relationship between low-temperature excess heat-capacity and physical properties in ZnO-P2O5 glasses2013

    • Author(s)
      S. Ishizeki, T. Fujiwara
    • Organizer
      The 12th Asia Pacific Physics Conference
    • Place of Presentation
      Chiba, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Crystallization in Glass : Novel Functional Materials for Photonic Application2012

    • Author(s)
      T. Fujiwara
    • Organizer
      The 6th Symposium on Functional Glasses and International Forum on New Photoelectric Materials
    • Place of Presentation
      中国・Guangzhou大学
    • Year and Date
      2012-11-20
    • Related Report
      2013 Final Research Report
  • [Presentation] Photoluminescence in Mineral-Derived Titanosilicates with Various Ti-Polyhedral Types for Rare-Earth Free Phosphor2012

    • Author(s)
      Y. Takahashi, T. Fujiwara
    • Organizer
      Fifth International Conference on Optical, Optoelectronic and Photonic Materials and Applications
    • Place of Presentation
      奈良
    • Year and Date
      2012-06-04
    • Related Report
      2013 Final Research Report
  • [Presentation] Crystallization in Glass: Novel Functional Materials for Photonic Application2012

    • Author(s)
      Takumi FUJIWARA
    • Organizer
      The 6th Symposium on Functional Glasses and International Forum on New Photoelectric Materials
    • Place of Presentation
      Guangzhou, China
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Inelastic light scattering of silicate glass and its relation to elastic property2012

    • Author(s)
      K. Nakamura, T. Fujiwara
    • Organizer
      5th French-Japanese Joint Workshop on Frontier Materials
    • Place of Presentation
      Rennes, France
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] White Light Emission of Rare Earth-Free Phosphate Glass2011

    • Author(s)
      H. Masai, T. Fujiwara
    • Organizer
      Internatiomal Symposium for Phosphor Materials
    • Place of Presentation
      新潟
    • Year and Date
      2011-11-21
    • Related Report
      2013 Final Research Report
    • Invited
  • [Presentation] White Light Emission of Rare Earth-Free Phosphate Glass2011

    • Author(s)
      H. Masai, T. Fujiwara
    • Organizer
      Internatiomal Symposium for Phosphor Materials(招待講演)
    • Place of Presentation
      新潟市
    • Related Report
      2011 Research-status Report
  • [Book] 化学便覧2014

    • Author(s)
      藤原 巧
    • Total Pages
      24
    • Publisher
      丸善
    • Related Report
      2013 Annual Research Report
  • [Book] NEW GLASS2011

    • Author(s)
      正井博和, 藤原 巧
    • Publisher
      ニューガラスフォーラム社
    • Related Report
      2013 Final Research Report
  • [Book] NEW GLASS2011

    • Author(s)
      正井博和、藤原 巧
    • Publisher
      ニューガラスフォーラム
    • Related Report
      2011 Research-status Report
  • [Remarks]

    • URL

      http://www.apph.tohoku.ac.jp/fujiwara-lab/

    • Related Report
      2013 Final Research Report
  • [Remarks] 東北大学大学院工学研究科 応用物理学専攻 藤原研究室

    • URL

      http://www.apph.tohoku.ac.jp/fujiwara-lab/

    • Related Report
      2013 Annual Research Report
  • [Remarks] 東北大学大学院工学研究科 応用物理学専攻 藤原研究室

    • URL

      http://www.apph.tohoku.ac.jp/fujiwara-lab/

    • Related Report
      2012 Research-status Report
  • [Remarks]

    • URL

      http://www.apph.tohoku.ac.jp/fujiwara-lab/

    • Related Report
      2011 Research-status Report
  • [Patent(Industrial Property Rights)] 白色発光ガラス, ガラス被覆発光素子及び発光装置2011

    • Inventor(s)
      正井博和, 藤原 巧
    • Industrial Property Rights Holder
      正井博和, 藤原 巧
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2011-024190
    • Filing Date
      2011-04-07
    • Related Report
      2013 Final Research Report
  • [Patent(Industrial Property Rights)] 白色発光ガラス、ガラス被覆発光素子及び発光装置2011

    • Inventor(s)
      正井博和、藤原 巧
    • Industrial Property Rights Holder
      正井博和、藤原 巧
    • Industrial Property Number
      2011-024190
    • Filing Date
      2011
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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