Journal
OPTICAL MATERIALS EXPRESS
Volume 6, Issue 3, Pages 929-937Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.6.000929
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Funding
- National Natural Science Foundation of China [21471038]
- Special Funds for University Discipline and Specialty Construction of Guangdong Province China [2013KJCX0066]
- National High Technology Research and Development Programs of China [2013AA03A101]
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A novel rare-earth ion free phosphor, Mn2+-activated Li2MgGeO4, was prepared by a high temperature solid-state reaction method. The phase structure was identified by XRD. We reported on its photoluminescence and long persistent luminescence properties. The green emission with a broad band centered at 525 nm corresponds to the T-4(1)((4)G)-(6)A(1)(S-6) transition of the Mn2+ ions. After irradiation by 254 nm UV light, green long persistent luminescence can be observed and last at least 5 h. Thermoluminescence was studied and the long persistent luminescence mechanism was also discussed in detail. (C) 2016 Optical Society of America
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