| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1620164 | Journal of Alloys and Compounds | 2010 | 5 Pages |
Abstract
The photoluminescence and afterglow characteristics of Zr doped CaTiO3:Pr3+ phosphors were investigated. Zr4+ substitution for Ti4+ leads to the enhancement of red fluorescence and phosphorescence at 613 nm originating from 1D2 to 3H4 transition of Pr3+, and the increase of the lifetime for the 1D2 state. The enhancement of emission intensity was attributed to the change of the lattice structure, the increase of the Pr3+ amount, and the decrease of the concentration of the defects quenching red emission. The increase of lifetime was thought to originate from the increase of the density of [PrCa]0 traps.
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Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Jun-Cheng Zhang, Xusheng Wang, Xi Yao,