Effects of RE3+ as a co-dopant in blue-emitting long-lasting phosphors, Sr3Al10SiO20:Eu2+

被引：12

作者：

Kuang, J. Y. ^{[1
]}

Liu, Y. L. ^{[1
]}

Zhang, J. X. ^{[1
]}

机构：

[1] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2006年 / 41卷 / 17期

关键词：

D O I：

10.1007/s10853-006-0244-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of novel long-lasting phosphors, Sr3Al10SiO20:Eu2+,RE3+, were prepared and studied. Under UV irradiation, broad-band emission long-lasting phosphorescence located at 466 nm was observed in all of these phosphors at room temperature. The effects of RE3+ as a co-dopant in Sr3Al10SiO20:Eu2+ were discussed in conjunction with the afterglow decay curves and thermoluminescence (TL) spectra. Quantitative TL spectra revealed that the introduction of RE3+ ions into Sr3Al10SiO20:Eu2+ host produces a highly dense trapping level at appropriate depth (335 K), which is considered to be responsible for the long-lasting phosphorescence at room temperature.

引用

页码：5500 / 5503

页数：4

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