| 光谱学与光谱分析 |
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| Synthesis and Luminescent Properties of LuAG∶Ce3+ Transparent Ceramics by Solvo-Thermal Method |
| WANG Lin-xiang1, 2, 3, ZHU Heng-jiang2, WU Ling-yuan1, 3, DENG Kai-mo1, 3, GUO Chang-xin1, YIN Min1, 3* |
1. Physics Department, University of Science and Technology of China, Hefei 230026, China
2. Department of Physics, Xinjiang Normal University, Urumqi 830054, China
3. Hefei National Laboratory for Physical Sciences at Microscale, Chinese Academy of Sciences, Hefei 230026, China |
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Abstract The precursor powders of LuAG∶Ce3+ transparent ceramics were synthesized by solvo-thermal method. The crystal structure and morphology of powders were analyzed by means of Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy. The precursor powders were sintered into transparent ceramics in vacuum and then in nitrogen without any additive. The surface morphology of the transparent unpolished ceramics was characterized using scanning electron microscopy. Some factors that affect the transparency of ceramics were discussed. The UV-Vis fluorescence excitation and emission spectra of LuAG∶Ce3+ transparent ceramics were measured. The vacuum ultraviolet spectra of transparent ceramics were investigated using the synchrotron radiation as the excitation source. The excitation mechanism of Ce3+ was discussed at different excitation wavelength.
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Received: 2010-03-02
Accepted: 2010-06-01
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Corresponding Authors:
YIN Min
E-mail: yinmin@ustc.edu.cnIntroduction
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