光电子快报（英文版）, 2015, 11 (5): 366, Published Online: Oct. 12, 2017
Improved luminescent properties of SrZn2(PO4)2:Sm3+doped with Li+, Na+and K+ions
Abstract
SrZn2(PO4)2:Sm3+phosphor was synthesized by a high temperature solid-state reaction in atmosphere. SrZn2(PO4)2:Sm3+phosphor is efficiently excited by ultraviolet (UV) and blue light, and the emission peaks are assigned to the transitions of 4G5/2-6H5/2(563 nm), 4G5/2-6H7/2(597 nm and 605 nm) and 4G5/2-6H9/2(644 nm and 653 nm). The emission intensities of SrZn2(PO4)2:Sm3+are influenced by Sm3+concentration, and the concentration quenching effect of SrZn2(PO4)2:Sm3+is also observed. When doping A+(A=Li, Na and K) ions, the emission intensity of SrZn2(PO4)2:Sm3+can be obviously enhanced. The Commission Internationale de l'Eclairage (CIE) color coordinates of SrZn2(PO4)2:Sm3+locate in the orange-red region. The results indicate that the phosphor has a potential application in white light emitting diodes (LEDs).
LU Wei, LIU Yu-fei, WANG Ying, WANG Zhi-jun, PANG Li-bin. Improved luminescent properties of SrZn2(PO4)2:Sm3+doped with Li+, Na+and K+ions[J]. 光电子快报（英文版）, 2015, 11(5): 366.
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