Enhancement of the red emission in CaTiO3:Pr3+ by addition of rare earth oxides

Xianmin Zhang, Jiahua Zhang, Xia Zhang, Li Chen, Yongshi Luo, Xiao jun Wang

    Research output: Contribution to journalArticlepeer-review

    49 Citations (Scopus)

    Abstract

    Enhancement of the 1D2-3H4 red emission of CaTiO3:Pr3+ with addition of rare earth oxides Ln2O3 (Ln = Lu, La, Gd) is reported. Ca2+ and Ti4+ in CaTiO3 can be substituted by Ln3+ ions as donors and acceptors, respectively. Ca2+ and Ti4+ vacancies, as quenching centers in the host, are effectively suppressed by the self-compensation, leading to the increase of lifetimes and then the emission efficiency of 1D2. The red fluorescence intensity for CaTiO3:Pr3+ phosphor co-doped with 5 mol% Lu2O3 is nearly 3 times greater than that of the Lu-free samples.

    Original languageEnglish
    Pages (from-to)237-240
    Number of pages4
    JournalChemical Physics Letters
    Volume434
    Issue number4-6
    DOIs
    Publication statusPublished - 2007 Feb 5

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Physical and Theoretical Chemistry

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