Properties of Czochralski grown Ce,Gd

Y3Al5O 12 single crystal for white light-emitting diode

Anastasiya Latynina, Makoto Watanabe, Daisuke Inomata, Kazuo Aoki, Yoshiyuki Sugahara, Encarnacíon García Víllora, Kiyoshi Shimamura

    Research output: Contribution to journalArticle

    42 Citations (Scopus)

    Abstract

    Czochralski grown Ce and Gd-doped Y3Al5O12 (Ce,Gd:YAG) single crystal demonstrated superior performance features in a new concept of white LED where it is used as thin single crystal phosphor plates (SCPPs). New SCPP-based white LED realizes epoxy resin free package, which allows to eliminate the photodegradation issue of the organic material. Optical, thermal and electrical properties of SCPPs and SCPP-based white LEDs are discussed with the powder phosphor and commercial LED reference. SCPPs showed significantly higher values and better stability under the high temperatures, irradiation and current. Quantum efficiency was found to be as high as 93%.

    Original languageEnglish
    Pages (from-to)89-92
    Number of pages4
    JournalJournal of Alloys and Compounds
    Volume553
    DOIs
    Publication statusPublished - 2013 Mar 15

    Fingerprint

    Phosphors
    Light emitting diodes
    Single crystals
    Epoxy Resins
    Photodegradation
    Quantum efficiency
    Epoxy resins
    Powders
    Electric properties
    Thermodynamic properties
    Optical properties
    Irradiation
    Temperature

    Keywords

    • Crystal growth
    • Luminescence
    • Optical properties
    • Oxide materials
    • Phosphors

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Mechanics of Materials
    • Materials Chemistry
    • Metals and Alloys

    Cite this

    Properties of Czochralski grown Ce,Gd : Y3Al5O 12 single crystal for white light-emitting diode. / Latynina, Anastasiya; Watanabe, Makoto; Inomata, Daisuke; Aoki, Kazuo; Sugahara, Yoshiyuki; García Víllora, Encarnacíon; Shimamura, Kiyoshi.

    In: Journal of Alloys and Compounds, Vol. 553, 15.03.2013, p. 89-92.

    Research output: Contribution to journalArticle

    Latynina, Anastasiya ; Watanabe, Makoto ; Inomata, Daisuke ; Aoki, Kazuo ; Sugahara, Yoshiyuki ; García Víllora, Encarnacíon ; Shimamura, Kiyoshi. / Properties of Czochralski grown Ce,Gd : Y3Al5O 12 single crystal for white light-emitting diode. In: Journal of Alloys and Compounds. 2013 ; Vol. 553. pp. 89-92.
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    abstract = "Czochralski grown Ce and Gd-doped Y3Al5O12 (Ce,Gd:YAG) single crystal demonstrated superior performance features in a new concept of white LED where it is used as thin single crystal phosphor plates (SCPPs). New SCPP-based white LED realizes epoxy resin free package, which allows to eliminate the photodegradation issue of the organic material. Optical, thermal and electrical properties of SCPPs and SCPP-based white LEDs are discussed with the powder phosphor and commercial LED reference. SCPPs showed significantly higher values and better stability under the high temperatures, irradiation and current. Quantum efficiency was found to be as high as 93{\%}.",
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    AU - Inomata, Daisuke

    AU - Aoki, Kazuo

    AU - Sugahara, Yoshiyuki

    AU - García Víllora, Encarnacíon

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