Optical energy storage properties of Sr2MgSi2O7:Eu2+,R3+ persistent luminescence materials

被引：49

作者：

Brito, Hermi F. ^{[2
]}

Hassinen, Jukka ^{[3
]}

Holsa, Jorma ^{[1
,2
,3
]}

Jungner, Hogne ^{[4
]}

Laamanen, Taneli ^{[3
]}

Lastusaari, Mika ^{[1
,3
]}

Malkamaki, Marja ^{[3
]}

Niittykoski, Janne ^{[3
]}

Novak, Pavel ^{[5
]}

Rodrigues, Lucas C. V. ^{[2
,3
]}

机构：

[1] Turku Univ, Ctr Mat & Surfaces MatSurf, Turku, Finland

[2] Univ Sao Paulo, Dept Quim Fundamental, Inst Quim, BR-05508900 Sao Paulo, Brazil

[3] Univ Turku, Dept Chem, Turku 20014, Finland

[4] Univ Helsinki, Dating Lab, FIN-00014 Helsinki, Finland

[5] Acad Sci Czech Republ, Inst Phys, Prague 16253 6, Czech Republic

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2011年 / 105卷 / 02期

关键词：

Thermoluminescence; Persistent luminescence; DFT; Disilicate; Trapping; MECHANISM; THERMOLUMINESCENCE; PHOSPHORESCENCE; DY3+; EU2+;

D O I：

10.1007/s10973-011-1403-2

中图分类号：

O414.1 [热力学];

学科分类号：

070201 [理论物理];

摘要：

The details of the mechanism of persistent luminescence were probed by investigating the trap level structure of Sr2MgSi2O7:Eu2+,R3+ materials (R: Y, La-Lu, excluding Pm and Eu) with thermoluminescence (TL) measurements and Density Functional Theory (DFT) calculations. The TL results indicated that the shallowest traps for each Sr2MgSi2O7:Eu2+,R3+ material above room temperature were always ca. 0.7 eV corresponding to a strong TL maximum at ca. 90 A degrees C. This main trap energy was only slightly modified by the different co-dopants, which, in contrast, had a significant effect on the depths of the deeper traps. The combined results of the trap level energies obtained from the experimental data and DFT calculations suggest that the main trap responsible for the persistent luminescence of the Sr2MgSi2O7:Eu2+,R3+ materials is created by charge compensation lattice defects, identified tentatively as oxygen vacancies, induced by the R3+ co-dopants.

引用

页码：657 / 662

页数：6

共 24 条

[1]

Thermoluminescence study of persistent luminescence materials:: Eu2+- and R3+-doped calcium aluminates, CaAl2O4:Eu2+,R3+ [J].

Aitasallo, T ;

Hölsä, J ;

Jungner, H ;

Lastusaari, M ;

Niittykoski, J .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (10) :4589-4598

[2]

Persistent luminescence phenomena in materials doped with rare earth ions [J].

Aitasalo, T ;

Deren, P ;

Hölsä, J ;

Jungner, H ;

Krupa, JC ;

Lastusaari, M ;

Legendziewicz, J ;

Niittykoski, J ;

Strek, W .

JOURNAL OF SOLID STATE CHEMISTRY, 2003, 171 (1-2) :114-122

[3]

Synchrotron radiation investigations of the Sr2MgSi2O7:Eu2+,R3+ persistent luminescence materials [J].

Aitasalo, Tuomas ;

Hassinen, Jukka ;

Holsa, Jorma ;

Laamanen, Taneli ;

Lastusaari, Mika ;

Malkamaki, Marja ;

Niittykoski, Janne ;

Novak, Pavel .

JOURNAL OF RARE EARTHS, 2009, 27 (04) :529-538

[4]

Blaha P., 2001, CALCULATING CRYST PR, V60

[5]

Lanthanide energy levels in YPO4 [J].

Bos, Adrie J. J. ;

Dorenbos, Pieter ;

Bessiere, Aurelie ;

Viana, Bruno .

RADIATION MEASUREMENTS, 2008, 43 (2-6) :222-226

[6]

X-ray absorption study of rare earth ions in Sr2MgSi2O7:Eu2+,R3+ persistent luminescence materials [J].

Carlson, Stefan ;

Holsa, Jorma ;

Laamanen, Taneli ;

Lastusaari, Mika ;

Malkamaki, Marja ;

Niittykoski, Janne ;

Valtonen, Riikka .

OPTICAL MATERIALS, 2009, 31 (12) :1877-1879

[7]

Chung K. S., 2008, TL GLOW CURVE ANAL V

[8]

Formulation of phosphorescence mechanisms in inorganic solids based on a new model of defect conglomeration [J].

Clabau, F. ;

Rocquefelte, X. ;

Le Mercier, T. ;

Deniard, P. ;

Jobic, S. ;

Whangbo, M-H. .

CHEMISTRY OF MATERIALS, 2006, 18 (14) :3212-3220

[9]

Nanoprobes with near-infrared persistent luminescence for in vivo imaging [J].

de Chermont, Quentin le Masne ;

Chaneac, Corinne ;

Seguin, Johanne ;

Pelle, Fabienne ;

Maitrejean, Serge ;

Jolivet, Jean-Pierre ;

Gourier, Didier ;

Bessodes, Michel ;

Scherman, Daniel .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (22) :9266-9271

[10]

Mechanism of persistent luminescence in Eu2+ and Dy3+ codoped aluminate and silicate compounds [J].

Dorenbos, P .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (07) :H107-H110

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