SHEN Lei-jun, ZHAO Zeng-qi, WAN Zuo-bo, ZHOU Yong-bo, LI Bo, ZHANG Guo-bin. Synthesis of Ce<sup>3+</sup> Doped Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub> and Its VUV Spectral Characteristics[J]. Chinese Journal of Luminescence, 2008,29(2): 269-273
SHEN Lei-jun, ZHAO Zeng-qi, WAN Zuo-bo, ZHOU Yong-bo, LI Bo, ZHANG Guo-bin. Synthesis of Ce<sup>3+</sup> Doped Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub> and Its VUV Spectral Characteristics[J]. Chinese Journal of Luminescence, 2008,29(2): 269-273DOI:
Synthesis of Ce3+ Doped Y3Al5O12 and Its VUV Spectral Characteristics
0.09)samples were synthesized by the conventional solid state reaction method as well as co-precipitation method. XRD analysis shows that the synthesized samples are all in single lattice phase with cubic structure
which is consistent with the JCPDS standard card (88-2047). From the SEM analyses
the use of co-precipitation method decreases the synthesis temperature of the samples
and results in fine grains and particles in these materials. In the VUV excitation spectrum of YAG:Ce
three separative peaks are found at 126 nm
177 nm and 230 nm
respectively. There is a wide asymmetry emission band peaked at about 530~540 nm
and resulted from two transitions of 5d
→2
F
5/2
and 5d
→2
F
7/2
of Ce
3+
in the PL emission spectra. The intensity of emission spectra of Y
3
Al
5
O
12
:Ce
3+
x(x=0.01
0.03
0.05
0.07
0.09)increases as x increases from 0. 01 to 0.05
and then decreases when x increases from 0. 05 to 0.09 further. The phenomenon accords with characteristic concentration quenching.
关键词
YAG:Ce3+真空紫外发光
Keywords
YAGVUVluminescence
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