Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 509, Issue 5, Pages 2007-2010Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.10.119
Keywords
Phosphors; Solid state reactions; Optical properties; Luminescence
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Funding
- MEST [2009-0078682]
- Science and Technology Program of Hunan Province [2010FJ3092]
- National Research Foundation of Korea [핵06B2812, 2009-0078682] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Luminescence properties of the Sm3+, Dy3+ doped LaMoBO6 phosphors are reported. LaMoBO6:Sm3+ exhibits orange emission corresponding to the (4)G(5/2) -> H-6(7/2) transition. LaMoBO6:Dy3+ exhibits two emission bands. The yellow band (570 nm) corresponds to the F-4(9/2) -> H-6(13/2) transition, and the blue one (482 nm) corresponds to the F-4(9/2) -> H-6(15/2) transition. The optimum concentration of Sm3+ and Dy3+, the critical distance of the concentration quenching, and the decay curves have also been investigated. The analysis of the decay curves indicates that cross-relaxation is primarily responsible for the concentration quenching. (C) 2010 Elsevier B.V. All rights reserved.
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