YANG Zhi-ping, ZHAO Yin-hong, LIANG Xiao-shuang, LIU Peng-fei, LV Liang. Synthesis and Luminescence Properties of A Novel Ca<sub>10</sub>Li(PO<sub>4</sub>)<sub>7</sub>:Dy<sup>3+</sup>, Ce<sup>3+</sup> Phosphor[J]. Chinese Journal of Luminescence, 2013,34(10): 1279-1282
YANG Zhi-ping, ZHAO Yin-hong, LIANG Xiao-shuang, LIU Peng-fei, LV Liang. Synthesis and Luminescence Properties of A Novel Ca<sub>10</sub>Li(PO<sub>4</sub>)<sub>7</sub>:Dy<sup>3+</sup>, Ce<sup>3+</sup> Phosphor[J]. Chinese Journal of Luminescence, 2013,34(10): 1279-1282 DOI: 10.3788/fgxb20133410.1279.
Synthesis and Luminescence Properties of A Novel Ca10Li(PO4)7:Dy3+, Ce3+ Phosphor
phosphor was prepared by solid state reaction method
and its luminescence properties were studied. XRD results showed that 1 050℃ was a suitable sintered temperature for preparation of Ca
10
Li(PO
4
)
7
:Dy
3+
phosphors. The main excitation peaks were located at 349 nm (
6
H
15/2
6
P
7/2
)
363 nm (
6
H
15/2
6
P
5/2
) and 385 nm (
6
H
15/2
6
M
21/2
). The sample can be excited by UV-LED. The emission spectra composed two peaks
which were located at 481 nm (blue) and 572 nm (yellow)
corresponding to the
4
F
9/2
6
H
15/2
、
6
H
13/2
typical transition of Dy
3+
.The influence of doped Dy
3+
concentration on the luminescent intensity of Ca
10
Li(PO
4
)
7
:Dy
3+
was investigated. The relative intensity of Ca
10
Li(PO
4
)
7
:Dy
3+
sample reached the maximum value when Dy
3+
mole fraction was 10%. The intensities increased with Ce
3+
mole fraction. The relative intensity of the sample reached the maximum value when Dy
3+
mole fraction was 10%
Ce
3+
mole fraction was 14%. The intensity is 13.4 times higher than the original. The color of the phosphor was changed from yellow-white to blue-white.
关键词
Keywords
references
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