Relationship between luminescence and matrices in the system Al_2O_3-B_2O_3-C_2O_3 |
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| Affiliation: | YOU Hongpeng+1 and HONG Guangyan 1,2* 1. Laboratory of Rare Earth Inorganic Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; 2. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China. * Corresponding author. |
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| Abstract: | The system Al-2O-3-B-2O-3-Ce-2O-3, with Al/B ratio varying from 4.5 to 2 and Ce/(Al+B)=0.02, has been prepared at the temperature from 1 200 to 1 400℃. Relationship between luminescence and matrices in the system Al-2O-3-B-2O-3-Ce-2O-3 was investigated. It was found that some changes of the matrices occurred with Al/B ratio varying from 4.5 to 2. These results lead to a great change in luminescence properties, indicating variation of Ce-surroundings of crystal field. With the decrease of the ratio from 3 to 2, the excitation and emission peaks shift to shorter wavelengths. It was also found that a new type of rare earth luminescent materials was obtained with appropriate Al/B ratio. |
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| Keywords: | Al-2O-3-B-2O-3-Ce-2O-3 X-ray diffraction pattern rare earth luminescence. |
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