Preparation and characterization of a new long afterglow indigo phosphor Ca12Al14O33:Nd,Eu

被引：55

作者：

Zhang, JY ^{[1
]}

Zhang, ZT

Wang, TM

Hao, WC

机构：

[1] Beihang Univ, Sch Sci, Ctr Mat Phys & Chem, Beijing 100083, Peoples R China

[2] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

MATERIALS LETTERS | 2003年 / 57卷 / 26-27期

关键词：

phosphor; phosphorescence; afterglow; luminescence; spectra; ceramics; optical materials and properties;

D O I：

10.1016/S0167-577X(03)00309-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new phosphor Ca12Al14O33:Nd,Eu was synthesized by a traditional solid-state reaction method and the luminescent properties were investigated. The phosphors are well crystallized by calcination at 1200 degreesC. The excitation and the emission spectra show the characteristic broadband of the Eu2+ ion and the emission light is indigo. Doping Nd3+ ion in the phosphor results in indigo long afterglow phosphorescence (the time for the phosphorescence intensity to decrease to 10% of its initial value is about 50 s) when the excitation light is cut off. The emission intensity decreases with the increase of Nd3+ ion concentration. Whereas, the phosphorescence intensity and afterglow time improve when the concentration of Nd3+ ion increases. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：4315 / 4318

页数：4

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