SUN Xiao-yuan, HE Xiao-guang, YU Li-jun, GAO Yun-feng, GUO Jin-quan, LUO Yong-shi, ZHANG Jia-hua, WU Chun-lei. Preparation and Photoluminescence Properties of Red Emitting Sr<sub>2</sub>Eu<sub><em>x</em></sub>Gd<sub>1-<em>x</em></sub>AlO<sub>5</sub> Phosphor for White LED[J]. Chinese Journal of Luminescence, 2013,34(11): 1474-1478
SUN Xiao-yuan, HE Xiao-guang, YU Li-jun, GAO Yun-feng, GUO Jin-quan, LUO Yong-shi, ZHANG Jia-hua, WU Chun-lei. Preparation and Photoluminescence Properties of Red Emitting Sr<sub>2</sub>Eu<sub><em>x</em></sub>Gd<sub>1-<em>x</em></sub>AlO<sub>5</sub> Phosphor for White LED[J]. Chinese Journal of Luminescence, 2013,34(11): 1474-1478 DOI: 10.3788/fgxb20133411.1474.
was synthesized through the solid-state reaction technique. The structure
photoluminescence properties of Sr
2
Eu
x
Gd
1-
x
AlO
5
were described. Under the excitation of UV and near UV light
the photoluminescence emission spectra can be assigned to the well-known transitions of Eu
3+
from the initial state
5
D
0
to the final states
7
F
J
(
J
=0
1
2
2
4). The two strong emissions peak at 590 nm and 622 nm
which arose from the
5
D
0
-
7
F
1
and
5
D
0
-
7
F
2
transitions of Eu
3+
respectively. When the mole fraction of Eu
3+
is 0.75
the emission intensity of the phosphor is the strongest. This phosphor is considered to be a potential red-emitting phosphor for NUV chip white LED.
关键词
Keywords
references
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