A potential red-emitting phosphor for UV-white led and fluorescent lamp

K. U. Kim, S. H. Choi, H. K. Jung, S. Nahm

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Luminescence properties of NaLnGeO4:Eu3+ (Ln=rare earth) phosphors were investigated. It has a strong red emission under mercury discharge and deep blue/near-UV excitations. With the proper atomic ratio of rare earth ions, Y/Gd, and activator concentration, the emission intensity of Eu3+-activated germanate compound is comparable to that of commercial red-emitting phosphor, Y2O3:Eu3+, under 254 nm excitation with the CIE coordinates are x=0.655. y=0.339. Moreover, the maximum emission intensity is about four times higher than that of SrS:Eu3+ under GaN-based blue light excitations (λex=400-465 nm).

    Original languageEnglish
    Title of host publicationDevelopments in Strategic Materials, Proceedings - A Collection of Papers Presented at the 32nd International Conference on Advanced Ceramics and Composites
    Pages279-284
    Number of pages6
    Edition10
    Publication statusPublished - 2009
    EventDevelopments in Strategic Materials - 32nd International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States
    Duration: 2008 Jan 272008 Feb 1

    Publication series

    NameCeramic Engineering and Science Proceedings
    Number10
    Volume29
    ISSN (Print)0196-6219

    Other

    OtherDevelopments in Strategic Materials - 32nd International Conference on Advanced Ceramics and Composites
    Country/TerritoryUnited States
    CityDaytona Beach, FL
    Period08/1/2708/2/1

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Materials Chemistry

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