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Photoluminescence Properties of Novel BaLiZn3(BO3)3:RE (RE = Sm3+, Tb3+, Dy3+, and Pb2+) Blue, Green, Orange-Red Emitting Phosphors for White Light Emitting Diodes
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Photoluminescence Properties of Novel BaLiZn3(BO3)3:RE (RE = Sm3+, Tb3+, Dy3+, and Pb2+) Blue, Green, Orange-Red Emitting Phosphors for White Light Emitting Diodes
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Journal Article
Photoluminescence Properties of Novel BaLiZn3(BO3)3:RE (RE = Sm3+, Tb3+, Dy3+, and Pb2+) Blue, Green, Orange-Red Emitting Phosphors for White Light Emitting Diodes
2024
Overview
A new class of BaLiZn
3
(BO
3
)
3
:RE (RE = Sm
3+
, Tb
3+
, Dy
3+
, and Pb
2+
) phosphors were synthesized with a solid- state reaction method. The minor concentrations of various rare earth (Tb
3+
, Dy
3+
, and Sm
3+
) ions and transition metal (Pb
2+
) ions activated in the BaLiZn
3
(BO
3
) host matrix were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence spectroscopy. The XRD results of BaLiZn
3
(BO
3
)3:RE (RE = Sm
3+
, Tb
3+
, Dy
3+
, and Pb
2+
) phosphors confirmed that all the samples have a monoclinic phase. SEM studies revealed that the morphology of BaLiZn
3
(BO
3
)
3
:RE (RE = Sm
3+
, Tb
3+
, Dy
3+
, and Pb
2+
) phosphors was irregular. The photoluminescence emission and excitation spectra show that these phosphors can be effectively excited by near-ultraviolet light-emitting diodes (n-UV), and they all exhibit an efficient orange-red (Sm
3+
,
4
G
5/2
→
6
H
7/2
), green (Tb
3+
,
5
D
4
→
7
F
5
), yellow (Dy
3+
,
4
F
9/2
→
6
H
13/2
), and blue (Pb
2+
,
3
P
1
→
1
S
0
) emission. All of the above results confirmed that the obtained phosphors could be a potential candidate for n-UV-excited WLEDs.
Publisher
Springer US,Springer Nature B.V
