Luminescence of long-lasting CaAl2O4:Eu2+,Nd3+ phosphor by co-precipitation method

被引：73

作者：

Chang, CK

Xu, J

Jiang, L

Mao, DL

Ying, WJ

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200030, Peoples R China

[2] Shanghai Jiao Tong Univ, Instrumental Anal Ctr, Shanghai 200030, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2006年 / 98卷 / 2-3期

基金：

上海市自然科学基金;

关键词：

co-precipitation; phosphorescence; afterglow; thermally stimulated luminescence;

D O I：

10.1016/j.matchemphys.2005.09.069

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Long-lasting CaAl2O4:Eu2+Nd3+ phosphor was prepared by co-precipitation method. CaAl2O4:Eu2+,Nd3+ single phased phosphor was achieved by calcining the as-precipitated precursor at 1150 degrees C. Some other calcium aluminates, CaAl4O7 and Ca3AlO6, were identified as the intermediate phase during the calcination process. The obtained phosphor showed a long afterglow peaking at 430 nm, a slight blue shift due to the decrease in grain size. The obtained phosphor revealed a faint afterglow when compared to the phosphor prepared through solid reaction routine, which can be ascribed to the different traps formed by the co-doped Nd3+ ion within the CaAl2O4 host. (c) 2005 Elsevier B.V All rights reserved.

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页码：509 / 513

页数：5

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