Multi-color long-lasting phosphorescence of rare earth ions in CdSiO3 matrix

O6; A series of rare earth ions doped CdSiO3:RE3+(RE=Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) multi-color long-lasting phosphorescence phosphors are prepared by the conventional high- temperature solid-state method. The results of XRD measurement indicate that the products fired un...

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Bibliographic Details
Published in:科学通报(英文版) 2003-11, Vol.48 (22), p.2434-2437
Main Authors: LEI Bingfu, Liu Yingliang, YE Zeren, SHI Chunshan
Format: Article
Language:English
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Summary:O6; A series of rare earth ions doped CdSiO3:RE3+(RE=Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) multi-color long-lasting phosphorescence phosphors are prepared by the conventional high- temperature solid-state method. The results of XRD measurement indicate that the products fired under 1050℃ for 3 h have a good crystallization without any detectable amount of impurity phase. Rare earth ions doped CdSiO3 phosphors possess excellent luminescence properties. When rare earth ions such as Y3+, La3+, Gd3+, Lu3+, Ce3+, Nd3+, Ho3+, Er3+, Tm3+ and Yb3+ are introduced into the CdSiO3 host, one broadband centered at about 420 nm resulting from traps can be observed. In the case of other earth ions such as Pr3+, Sm3+, Eu3+, Tb3+ and Dy3+, their characteristic line emitting as well as the ～420 nm broadband luminescence can be obtained. The mixture of their characteristic line emitting with the ～420 nm broadband luminescence results in various afterglow color.
ISSN:1001-6538