Journal
PHYSICA B-CONDENSED MATTER
Volume 415, Issue -, Pages 1-4Publisher
ELSEVIER
DOI: 10.1016/j.physb.2013.01.027
Keywords
Persistent luminescence; Concentration quenching; SrAl2O4:Eu2+; Dy3+; Tunneling
Categories
Funding
- National Natural Science Foundation of China [21271049]
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The concentration quenching of persistent luminescence was investigated. SrAl2O4:Eu2+,Dy3+ was taken as an instance. We proposed a model to explain the phenomenon. The concentration quenching of Eu2+ is attributed to competitive capturing of electrons with traps, while the concentration quenching of Dy3+ is interpreted by electron tunneling among traps. (C) 2013 Elsevier B.V. All rights reserved.
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