Luminescence properties of LaPO4:RE (RE = Dy3+, Eu3+, Sm3+) orthophosphate phosphor for n-UV solid-state lighting prepared by wet chemical synthesis
The synthesis of LaPO 4 :RE (RE = Dy 3+ , Eu 3+ , Sm 3+ ) via a wet chemical method was reported. The prepared phosphor was characterized by XRD, and photoluminescence characteristics were reported. A monoclinic phase was confirmed by X-ray diffraction measurements. Under UV excitation (349 nm), LaP...
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Published in | Journal of materials science. Materials in electronics Vol. 34; no. 8; p. 707 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.03.2023
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | The synthesis of LaPO
4
:RE (RE = Dy
3+
, Eu
3+
, Sm
3+
) via a wet chemical method was reported. The prepared phosphor was characterized by XRD, and photoluminescence characteristics were reported. A monoclinic phase was confirmed by X-ray diffraction measurements. Under UV excitation (349 nm), LaPO
4
:Dy
3+
phosphor shows emission at 481 and 575 nm, corresponding to a magnetic dipole (
4
F
9/2
→
6
H
15/2
) and electric dipole (
4
F
9/2
→
6
H
13/2
) transitions. When LaPO
4
:Eu
3+
phosphor was stimulated at 394 nm, observed emission spectra exhibited prominent bands at 593 and 615 nm, corresponding to magnetic dipole
5
D
0
→
7
F
1
transition with the maximum intensity of emission and electric dipole
5
D
0
→
7
F
2
transition, respectively. When excited at a wavelength of 402 nm, the LaPO
4
:Sm
3+
phosphor shows emission at 562 nm and 597 nm, which correspond to the
4
G
5/2
→
6
H
5/2
and
4
G
5/2
→
6
H
7/2
transitions. The photoluminescence studies show that the LaPO
4
:RE (RE = Dy
3+
, Eu
3+
and Sm
3+
) phosphors could be applicable in the fields of n-UV-excited solid-state lighting. |
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ISSN: | 0957-4522 1573-482X |
DOI: | 10.1007/s10854-023-10119-0 |