Preparation of red-emitting Eu2+-doped barium calcium silicon oxynitride by solid-state reaction and its luminescence properties

Hiroya Morishita, Anne C.A. Delsing, Hubertus T. Hintzen, Hideki Kuwahara, Kiyoshi Itatani

    Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

    1 Citaat (Scopus)

    Samenvatting

    The luminescence properties of Eu2+-doped barium calcium silicon oxynitrides (general formula: Ba4-xCaxSi 6ON10: Eu2+ (x = 1.8 ∼ 2.2)) were examined, together with the preparation conditions for the solid state reaction. Firstly, the stoichiometric amounts of Ba, Ca3N2, SiO2 and Si3N4 were mixed with Eu2O3 (activator; the molar ratios of Eu to (Ca + Ba + Eu) (= m; 0.05 to 1.0)) for the preparation of Ba1.8Ca22Si6ON10: Eu2+, Ba2.0Ca2.0Si6ON10: Eu2+ and Ba2.2Ca1.8Si6ON10: Eu2+, and then the mixtures were heated at a temperature between 1300 and 1550°C for 10 h in N2 atmosphere. The single phase compounds, which were prepared by the heating at and above 1350°C, emitted the red color light whose wavelength could be changed from 638 to 653 nm with increasing m value from 0.05 to 1.00, due to the excitation at the wavelength of 528 nm.

    Originele taal-2Engels
    TitelInorganic and Environmental Materials
    UitgeverijTrans Tech Publications
    Pagina's149-152
    Aantal pagina's4
    ISBN van geprinte versie9783038351443
    DOI's
    StatusGepubliceerd - 2014
    Evenement2nd International Symposium on Inorganic Environmental Materials, ISIEM 2013 - Rennes, Frankrijk
    Duur: 27 okt 201331 okt 2013

    Publicatie series

    NaamKey Engineering Materials
    Volume617
    ISSN van geprinte versie1013-9826
    ISSN van elektronische versie1662-9795

    Congres

    Congres2nd International Symposium on Inorganic Environmental Materials, ISIEM 2013
    LandFrankrijk
    StadRennes
    Periode27/10/1331/10/13

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