Investigation on the improvement of red phosphorescence in CaTiO3:Pr3+ nanoparticles

Xianmin Zhang, Jiahua Zhang, Meiyuan Wang, X. Zhang, H. Zhao, Xiao Jun Wang

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    Red phosphorescence in nanosized CaTiO3:Pr3+ phosphors has been investigated by measuring the spectra of emission and excitation, as well as the charging and decay processes. The emission intensity and the persistent time have been improved. More energy traps have been observed in nanoparticles compared to the bulk powders. The integral emission intensity from the nanoparticles is remarkably greater than that from the bulk. A phosphorescence recombination mechanism through tunneling in nanoparticles is discussed.

    Original languageEnglish
    Pages (from-to)818-820
    Number of pages3
    JournalJournal of Luminescence
    Volume128
    Issue number5-6
    DOIs
    Publication statusPublished - 2008 May 1

    Keywords

    • CaTiO:Pr
    • Nanoparticles
    • Phosphorescence

    ASJC Scopus subject areas

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

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