Luminescence properties of BaMg2Si2O7:Eu2+,Mn2+

被引：23

作者：

Aitasalo, Tuomas ^{[1
]}

Hietikko, Anita ^{[1
]}

Hreniak, Dariusz ^{[2
]}

Holsa, Jorma ^{[1
]}

Lastusaari, Mika ^{[1
]}

Niittykoski, Janne ^{[1
]}

Strek, Wieslaw ^{[2
]}

机构：

[1] Univ Turku, Dept Chem, FI-20014 Turku, Finland

[2] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 451卷 / 1-2期

基金：

芬兰科学院;

关键词：

barium dimagnesium disilicate; europium; manganese; persistent luminescence;

D O I：

10.1016/j.jallcom.2007.04.169

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photoluminescence properties of monoclinic BaMg2Si2O7:Eu2+,Mn2+, were studied for red emitting persistent luminescence application. With UV excitation at 300 nm, wide band emission of Eu2+ resulting from the 4f(6)d(1) -> 4f(7) transition was observed at 400 nm. The emission of Mn2+ due to the T-4(1)((4)G) -> (6)A(1) (S-6) transition moved from 625 to 670 nm with increasing Mn2+, content because of the appearance of Mn2+-Mn2+ pairs. Both emissions were observed with 300 nm excitation. The decay time measurements suggest high energy transfer probability from Eu2+ to Mn2+. The strongest red emission was obtained with 5 and 20mol% doping of Eu2+ and Mn2+, respectively. The decay time of the Mn2+ emission drastically decreased with higher Mn2+ concentrations. The Eu2+ and Mn2+ co-doped materials showed only short and weak persistent luminescence. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：229 / 231

页数：3

共 14 条

[1] Syntheses, structural analyses, and unusual magnetic properties of Ba2CoSi2O7 and BaCo2Si2O7 [J].