Long lasting phosphorescent properties of Ti doped ZrO2

被引：84

作者：

Cong, Yan

Li, Bin ^{[1
]}

Lei, Bingfu

Li, Wenlian

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130033, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2007年 / 126卷 / 02期

基金：

中国国家自然科学基金;

关键词：

ZrO2; long-lasting phosphor; titanium ions;

D O I：

10.1016/j.jlumin.2006.12.002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel long-lasting afterglow phosphor ZrO2:Ti is prepared by the conventional solid-stated method and their luminescent properties are investigated. A bluish white strong and broad emissive band, which is attributed to originate from the recombination of electrons trapped by F+ centers and the holes created in Valence band, is observed under 254 nm UV irradiation. The identical color long afterglow, which lasts about 1 h, is found in the ZrO2:Ti phosphor after removing the 254 nm UV light. The mechanism of the long lasting phosphorescence (LLP) has been discussed based on the thermoluminescence (TL) results. The replacement of Zr by Ti produces more anion vacancies, resulting in the enhanced photoluminescence (PL) and LLP of ZrO2:Ti sample. These results indicate that ZrO,:Ti phosphor has potential promising applications. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：822 / 826

页数：5

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