| Tb3+在燃烧法制备的CaLaAl3O7粉体中的发光性能 |
| Luminescence Properties of Tb3+ in CaLaAl3O7 Crystalline Materials |
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| 摘要: 采用柠檬酸燃烧法制备了稀土Tb3+掺杂的CaLa1-xAl3O7∶xTb3+发光材料的前驱粉末，在低于700 ℃退火处理时，得到非晶态样品，而高于800 ℃退火处理后为纯相的CaLa1-xAl3O7∶xTb3+粉末样品。通过三维荧光光谱、激发光谱和发射光谱 |
| 关键词: CaLa1-xAl3O7∶xTb3+ 发光性能 柠檬酸燃烧法 |
| 基金项目: |
| Abstract: Using the citric acid-combustion method the precursor of CaLa1-xAl3O7∶xTb3+ was prepared. When annealing below 700 ℃, the materials were in amorphous state, when annealing temperature is above 800 ℃, the high purity CaLa1-xAl3O7∶xEu3+ crystalline materials were obtained. The effect of co-doping of Tb3+ ion annealing temperature and the molar proportion of citric acid and metal ion (C/M) on the luminescence properties of CaLa1-xAl3O7∶xTb3+ in amorphous and crystalline both have been investigated. The results indicate that the band of Tb3+ at 240 nm corresponding to 5D4-7FJ (J=6, 5, 4, 3) transition of Eu3+ ion. The main band is at 543 nm corresponding to 5D4-7F5 transition.With the crystalline materials formation, the 5D4-7F5 transition increases remarkably. |
| Keywords: CaLa1-xAl3O7∶xTb3+ luminescence properties citric acid-combustion method |
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| 摘要点击次数: 1745 |
| 全文下载次数: 1992 |
| 莎 仁,吴红英,王喜贵.Tb3+在燃烧法制备的CaLaAl3O7粉体中的发光性能[J].无机化学学报,2008,24(8):1331-1334. |
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