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XIN-YOU ZHANG1, HONG-JUN DONG1,* , ZE-MIN MEI1
Series of high-purity CaAl2O4:Sm3+ phosphors were first successfully prepared by the Self-Propagating Combustion Synthesis (SPCS) methods. The unit cell of CaAl2O4:Sm3+ was confirmed monoclinic system with a space group P21/n by XRD analysis. Lattice constant refinement was a = 0.8699nm, b = 0.8212 nm, c = 1.5207nm, β = 90.1584°, Z=12. Emission peaks attributed to 4G5/2→6HJ (J = 5/2, 7/2, 9/2, 11/2) transitions at 568nm, 603nm, 655nm and 715nm, respectively, and Sm3+ ions mainly took up symmetry center lattice. Excitation peaks belonged to f→f configuration transition absorption of at 406nm, 379nm, 367nm and 349nm, which maybe attributed to 6H5/2→(4F7/2, 4L13/2), (4D1/2, 6P7/2), 4F9/2, 4K15/2, respectively. Vibration feature of products was investigated by FT-IR spectra. SEM revealed products had smooth surface, the better crystallization.
SPCS, CaAl2O4:Sm3+, High-purity products, Luminescence properties.
XIN-YOU ZHANG, HONG-JUN DONG, ZE-MIN MEI, Structure and luminescence properties of Sm3+ doped in CaAl2O4 phosphor, Optoelectronics and Advanced Materials - Rapid Communications, 4, 1, January 2010, pp.28-32 (2010).
Submitted at: Dec. 8, 2009
Accepted at: Jan. 19, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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