Enhancement of red fluorescence and afterglow in CaTiO3: Pr3+ by addition of Lu2O3

Xianmin Zhang, Jiahua Zhang, Xia Zhang, Li Chen, Shaozhe Lu, Xiao Jun Wang

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    60 Citations (Scopus)

    Abstract

    CaTiO3: Pr3+ with addition Lu2O3 are synthesized by conventional solid-state reaction methods. It is found that the addition of Lu leads to the enhancement of red fluorescence and phosphorescence at 615 nm originating from 1D23H4 transition of Pr3+, following the increase of the lifetime for the 1D2 state. As a result, it is indicated that the non-radiative centers for the 1D2 state are suppressed by the addition of Lu ions. The persistent time of the afterglow is observed to increase from less than 15 min to over 2 h after the addition of 5 mol% Lu2O3. A tentative mechanism of the Lu-addition effect on the optical properties is discussed.

    Original languageEnglish
    Pages (from-to)958-960
    Number of pages3
    JournalJournal of Luminescence
    Volume122-123
    Issue number1-2
    DOIs
    Publication statusPublished - 2007 Jan

    Keywords

    • Pr
    • Red afterglow
    • Red phosphor

    ASJC Scopus subject areas

    • Biophysics
    • Biochemistry
    • Chemistry(all)
    • Atomic and Molecular Physics, and Optics
    • Condensed Matter Physics

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