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 journalArticlepeer-review

17 Scopus citations

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
StatePublished - May 2008

Keywords

  • CaTiO:Pr
  • Nanoparticles
  • Phosphorescence

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